Computer World

[Ken]

I have a computer problem here, i hope the pros can help.

When i start my com, some words came out.
It say: This file is missing or corrupted: C:\WINDOWS\IFSHLP.SYS
And the com cannot start

What should i do to correct it?

Thanks...

[kerry]

Yes you can see the list of updates available to download.

Your's better, mine, not even list displayed, until...he he he

Well, connectors during the ealy PC years doesn't have any foolproof shape (i.e. square corners at the bottom & curve corners at the top.)

I'm not sure for this one. I'm not that old to remember...
Still have one PSU from an 8086 system, update later.

Well, you can be lucky but I really don't want to take the risk if my customers' insist on not buying legal XP. I can just help them but don't want to jeopardize their business. Let them decide for themselves. I can just call up BSA but .... nah don't want lah, duit panas!!!

If you make money selling them ori software, inform them with a threat. I'm with co. so, no profit, just inform the mgmt if they don't go for ori s/ware, I'll be the who inform BSA/KDN/MS. A very good way of getting approval for 20K+ upgrade budget.

Wanna bet?I've experience something like that before when using unlicensed, fortunately not to the extreme as you describe. Just windows update don't give out the list of the available update. I just change the serno for a valid one.

Yes you can see the list of updates available to download. You can set the Auto Updates to "Notify me but don't automatically download or install them". The other way of getting the list to manually clicking the Windows Update option.

I've tried downloading/installing all the critical updates available except Microsoft Installer and that PC is okay.

Well, you can be lucky but I really don't want to take the risk if my customers' insist on not buying legal XP. I can just help them but don't want to jeopardize their business. Let them decide for themselves. I can just call up BSA but .... nah don't want lah, duit panas!!!

Ciao
 

I just want you to tell the concept, since the original information was;

But there still a hope. One friend of my told that ' A computer guy ' have some device that can transfer the files from D to another harddisk that have extra space... so the file still can be safe. They use a special high end tools... Is it true?

I may have miss something, but it doesn't say his HDD gone south.

If only need reformat, then, it's most probably can be copied using other system or booting from other O/S

One occasion that happen to me is the one of my firm's director's secretary's pc's hdd suddenly went quite. Inside, it not only store the boss's docs but also all of the firm's staff leave record. The bad news is I never make any backup for them.

techrepublic.com does publish a document titled "200 ways to revive a dead hdd"

One of the tip is to freeze the hdd, and I did that, and to my suprise it came alive with all the data intact. I quickly backup all the necessary datas and just for fun, I ran a HDD burn-in/stressing tools for 2 hours and it show no problem or whatsoever. Lucky me, I guess....

On another ocassion, the GM's secretary leave the firm and after doing so, she deleted all confidential data. Experiencing these before..... Spinrite to the rescue. It took 2+ days to recover a 20GB HDD.If you're familiar SMPS, you would know that the high voltage area and low voltage area is isolated electrically and physically.

That's the problem, I've only 'heard' about the 'device'. Kalau ikut concept, maybe it's like those CD copy drives, where you can copy from a single source to 4-5 CD with just one button & doesn't need the device to be hooked up to a PC.

Reversed the connector on HDD? is that posibble? Unless you used extreme force.

Well, connectors during the ealy PC years doesn't have any foolproof shape (i.e. square corners at the bottom & curve corners at the top.)

Wanna bet? I've experience something like that before when using unlicensed, fortunately not to the extreme as you describe. Just windows update don't give out the list of the available update. I just change the serno for a valid one. If you just don't want to take the risk, you can always use windows catalog.Have you try to fix with live CD? reinstallation is very time consuming.

The problem is, I was not the one who did the initial installation. My work is to troubleshoot my customers' PC on a per-call basis.

I can't even check whether the particular problem PC is having SP1 or SP2 XP Pro. It just keep looping again and again and again. I did booting up using XP CD, repair XP but still the same. So, reinstallation is the best antidote to me.

Furthermore, my fee is counted by the hour, just don't want to curi makan like that. But first, I've to double checked with the customer whether there's any important data or not. If there is, then I have to take the CPU back, take out the harddisk, hook it up as slave on my DMZ PC, copied all data and then format the harddisk.

From my observation & interviews at one of the sites, out of 5 PCs, 3 is set to Auto Win Update. The other 2 is not, not updated & doesn't have any problem at all. But the 3 PCs on Auto is having the same problem. Tried replacing the RAMs, tried hooking to a spare PCs, tried 'repair XP' using XP Bootable CD, scan it for virus.. (nothing), ..... still the same problem.

Anyway, I always advised my customers, those with more than 5 PCs, to go 'legal', rather than take the risk of getting raided & publicised in the news.

Ciao
 

[kerry]

1. I can't elaborate b'cos I've only heard of this so-called hi-end tools for recovering dead harddisk. Maybe Norton Ghost shd be able to do it but technically, I don't know how.

I just want you to tell the concept, since the original information was;

But there still a hope. One friend of my told that ' A computer guy ' have some device that can transfer the files from D to another harddisk that have extra space... so the file still can be safe. They use a special high end tools... Is it true?

I may have miss something, but it doesn't say his HDD gone south.

If only need reformat, then, it's most probably can be copied using other system or booting from other O/S

One occasion that happen to me is the one of my firm's director's secretary's pc's hdd suddenly went quite. Inside, it not only store the boss's docs but also all of the firm's staff leave record. The bad news is I never make any backup for them.

techrepublic.com does publish a document titled "200 ways to revive a dead hdd"

One of the tip is to freeze the hdd, and I did that, and to my suprise it came alive with all the data intact. I quickly backup all the necessary datas and just for fun, I ran a HDD burn-in/stressing tools for 2 hours and it show no problem or whatsoever. Lucky me, I guess....

On another ocassion, the GM's secretary leave the firm and after doing so, she deleted all confidential data. Experiencing these before..... Spinrite to the rescue. It took 2+ days to recover a 20GB HDD.

2. Blown PSU? Did it blow up @ meletup or just smoke coming out from it? My best @ funny experience with blow up/burnt chips is with a harddisk.

If you're familiar SMPS, you would know that the high voltage area and low voltage area is isolated electrically and physically.

The last pc upgrade at my office involve about 8-10 celeron system.
These pc blown their PSU one-after-another. In preparation for disaster I've already have replacement PSU.

Not sure which one but among the last to burn, one PSU does not give those something cooking smell, just the pc refuse to start.

Replaced the PSU and back to normal again. As for the PSU, I've dismantled the casing to see what's exactly went wrong, fuse still ok, no burnt mark anywhere. So, put in the juice and it just give a loud popping sound. The opto-isolator and neighbouring diode flying in pieces towards the ceiling. He! He! He! (note to myself: must where goggles during experiment)

During my rookie years, I've mistakenly reversed the power connector & suddenly the one of the chips (at the bottom of the harddisk) starts to light up!

Reversed the connector on HDD? is that posibble? Unless you used extreme force.

4. I think you mean hardcore

yup! typo I guess.

5. Yes, SATA cable are provided with the motherboard. Some of the branded PC comes with what you ordered. If you ordered only 1 SATA harddisk, they will only provide 1.

True

In my customers' case, they specifically ordered 2 units of SATA 80GB. Since the price is quite substantial between an extra harddisk from a branded manufacturer & independent @ Imbi shops, I ordered only 1 harddisk from the manufacturer (fully formatted, partitioned & OS installed), and the extra 80GB from Imbi. Loose SATA harddisks doesn't come with SATA cables.

True, again. Maybe it's is/are case-to-case basis.

Yes, you can use pirated CD of Win XP Pro to install with licensed @ legal CD Keys or Serial No. But what I'm saying is those who use the pirate copy's CD Keys/Serial No.

Wanna bet?

I think the Win Update's Installer program will detect the Serial No. when it was first installed. Once it finished loading itself, it will replace certain system files. When you reboot the system, the PC will refuse to boot up. A blue screen will appear, only for a few secs, and the reboot cycle will start.

I've experience something like that before when using unlicensed, fortunately not to the extreme as you describe. Just windows update don't give out the list of the available update. I just change the serno for a valid one. If you just don't want to take the risk, you can always use windows catalog.

You can't even boot under Safe Mode.

Have you try to fix with live CD? reinstallation is very time consuming.

I've always using rm5.00 CD for installing licensed O/S & office, never experienced such problem. Either your pc got corrupted system files or virus attack.

Yes, you can use pirated CD of Win XP Pro to install with licensed @ legal CD Keys or Serial No. But what I'm saying is those who use the pirate copy's CD Keys/Serial No.

I think the Win Update's Installer program will detect the Serial No. when it was first installed. Once it finished loading itself, it will replace certain system files. When you reboot the system, the PC will refuse to boot up. A blue screen will appear, only for a few secs, and the reboot cycle will start.

You can't even boot under Safe Mode.

(For info, Safe Mode booting is for troubleshooting, where only the basic programs are loaded & running. This mode can be used if a suspected component or applications/programs is giving problems.)

Ciao
 

1. Can you elaborate? never heard of such thing..

2. You've been a bad boy there. I've only blown a PSU once...

3. Have you compare the data loading time between a 5,400, a 7,200 and a 10,000 rpm drives? They does make a significant difference when loading windows.

4. Are you forgetting hardcare gamers? Aren't they supplied with the motherboard?

1. I can't elaborate b'cos I've only heard of this so-called hi-end tools for recovering dead harddisk. Maybe Norton Ghost shd be able to do it but technically, I don't know how.

2. Blown PSU? Did it blow up @ meletup or just smoke coming out from it? My best @ funny experience with blow up/burnt chips is with a harddisk. During my rookie years, I've mistakenly reversed the power connector & suddenly the one of the chips (at the bottom of the harddisk) starts to light up! My boss, who happened to be standing behind, panic & blew on the chip! Well, the chip finally blew up (maybe from the hot air from my boss). The harddisk was spoilt but.... managed to get it replace under warranty!

3. Those days, speed comparison between those speeds can be ignore if you compare the price. Nowadays, most shops are selling the 72k harddisk. Prices have gone down & they are promoting SATA.

4. I think you mean hardcore. Yes, my mistake, always forgot about those hardcore players. If you haven't seen one, you can just dropby at one those big 24 hours cyber cafes & you will be able to see one very noisy group. These people are very choosy about cyber cafe's equipment.

5. Yes, SATA cable are provided with the motherboard. Some of the branded PC comes with what you ordered. If you ordered only 1 SATA harddisk, they will only provide 1. In my customers' case, they specifically ordered 2 units of SATA 80GB. Since the price is quite substantial between an extra harddisk from a branded manufacturer & independent @ Imbi shops, I ordered only 1 harddisk from the manufacturer (fully formatted, partitioned & OS installed), and the extra 80GB from Imbi. Loose SATA harddisks doesn't come with SATA cables.

Anyway, most of my postings on the harddisk are considered outdated. Nowadays, the price for a 256MB 400Mhz DDRam is only RM85, few months ago, it was RM150.

I'll try to keep this thread as alive & updated. BTW, prices of PC & its accessories nowadays changes every week.

Ciao
 

[kerry]

I'm not saying "Don't do Win Update", you should do it once a week. Only do it with licensed OS! Go Bill Gates! (Hopefully he have access to this forum & read this & award me some money!!!)

I've always using rm5.00 CD for installing licensed O/S & office, never experienced such problem. Either your pc got corrupted system files or virus attack.

[kerry]

I've heard about this 'high-end tools' or device before but haven't seen it yet. Anyway, I'm way behind in terms of these tech. engineers, certificate pun tarak. Semua belajar thru' trial & error.

Can you elaborate? never heard of such thing..

Talking about trial & error, I was lucky to have a very good boss, who is willing to let me learn by that method. Managed to destroy 3 hard disk, 2 motherboard & countless RAMs. Some people told me to dump PCs & take up skills in mainframes, supercomputers etc but lucky for me, I stayed with PCs. Now look at how powerful the PC have become!

You've been a bad boy there.
I've only blown a PSU once...

My personal advice on buying harddisk:
1. Buy those brands which have at least 1 year warranty.
2. Don't buy high speed harddisk just for the sake of a few hundred RPM difference. Boost up yr RAM & it WILL make a different.

Have you compare the data loading time between a 5,400, a 7,200 and a 10,000 rpm drives?
They does make a significant difference when loading windows

3. SATA (Serial ATA) harddisk is good & fast but only for those running databases (AutoCAD, Database System etc.).

Are you forgetting hardcare gamers?

Furthermore, a single SATA cable will cost RM50.

Aren't they supplied with the motherboard?

[M_Syafiq]

What happen was, all of a sudden, all the PCs start to act like a roller coaster, keep rebooting itself until u switch it off!

Assalamualaikum

PC saya pon penah jadi mcm ni...last Friday if not mistaken
mase 2 nak shut down...so tinggal je la PC cam2 cos nak tutop dah pon
then time dtg balik...tgk die on-off x henti2...cam dah x siuman dah PC tu
sebab x tau la pulak kenape
but time dtg tu...heran ler tgk lampu ijau nyaler...then off b4 lampu merah off...cos slalu 2-2 off serentak
so on monitor...die tuleh ade disk reading error...then tetibe die off sindri n dah x on balik dah...kira mcm shut down complete la
on balik PC tu...nak check...Alhamdulillah...OK aje
so rase Bro Jamal...ape prob PC tu?OS jugak ke?bad sector?

BTW, ttg MS Anti-spyware tu...slow mcm mane?pc atau 'makan' bandwidth?

p/s:anybody letting go his/her PATA hd?need 1 w/ low price.prefer 40gb n above

Thanks

On AntiSpyware, I have stopped using Giant aka Microsoft AntiSpyware since last Friday. Found out it really-really slows down the system!

Installed Norton Internet Security & my system doesn't take ages to start up. The Giant Antispyware is good in the sense of eliminating all the suspected spyware & adware but it doesn't prevent all that from getting into your PC in the first place. You have to run the scan & remove any spyware found in your PC!

With Norton, it prevents for any attack from outside, prevents spyware/adware from going into your PC, comes with a good firewall etc. It comes packaged with Norton Antivirus too.

PS: There goes my award from Bill Gates! But maybe Symantec @ Norton notice this!!!!

Life is like a rojak. Sometime you get not-enough kuah, sometime the rojak drowns with kuah!! kahkahkahkah
 

Last week was a very tiring & frustrating week for me (& my customer) but good for my business.

My customer have 4 PCs running 'not-so-legal' WinXP. All the PCs was set to automatically download Windows Update. What happen was, all of a sudden, all the PCs start to act like a roller coaster, keep rebooting itself until u switch it off!

Spent nearly an hour to rectify, most of the time looking at virus attack as the culprit. Luckily, there's a standalone PC, with no network & internet access. I hooked it up to the internet but not the network (takut network virus pulak) & did the Win Update. Right after finishing up the process, sudah jadi roller coaster jugak.

Apa lagi, 'Formatting Time!'. Again, lucky for me, all the PCs' harddisk were partitioned & data is located on the 2nd partition, senang sikit kerja, tak payah save/transfer data.

After explaining quite a while to the customer, I managed to persuade him to go LEGAL with the OS & MS Office. Life is so sweet after that. Once formatted & installed, I did the Win Update & it ran ever so smooth!

Moral of the Story: You can't really blame Microsoft for doing all that, business ma! BTW, the particular update which I suspect did all that is "Microsoft Installer ver x.xx". I think so.

I'm not saying "Don't do Win Update", you should do it once a week. Only do it with licensed OS! Go Bill Gates! (Hopefully he have access to this forum & read this & award me some money!!!)

Life is like a box of chocolate!
 

Tq Bro Jamal, for such a good info. Tapi pada kes saya, i dah try what you been told me but still cannot. 100% the PC need to reformat.

But there still a hope. One friend of my told that ' A computer guy ' have some device that can transfer the files from D to another harddisk that have extra space... so the file still can be safe. They use a special high end tools... Is it true?

P/s: Hope all of my important file still can be safe... May the force be with me.... ( star wars episode 3- 4 bintang )

I've heard about this 'high-end tools' or device before but haven't seen it yet. Anyway, I'm way behind in terms of these tech. engineers, certificate pun tarak. Semua belajar thru' trial & error.

Talking about trial & error, I was lucky to have a very good boss, who is willing to let me learn by that method. Managed to destroy 3 hard disk, 2 motherboard & countless RAMs. Some people told me to dump PCs & take up skills in mainframes, supercomputers etc but lucky for me, I stayed with PCs. Now look at how powerful the PC have become!

My personal advice on buying harddisk:
1. Buy those brands which have at least 1 year warranty.
2. Don't buy high speed harddisk just for the sake of a few hundred RPM difference. Boost up yr RAM & it WILL make a different.
3. SATA (Serial ATA) harddisk is good & fast but only for those running databases (AutoCAD, Database System etc.). Furthermore, a single SATA cable will cost RM50.

My next target now is to upgrade my 2 PCs (a P4 & an AMD 900). Maybe replace my motherboard with AMD with 512MB DDRAM. Add a DVDRW & maybe a 17" LCD.

Ciao
 

[Aqualung]

Tq Bro Jamal, for such a good info. Tapi pada kes saya, i dah try what you been told me but still cannot. 100% the PC need to reformat.

But there still a hope. One friend of my told that ' A computer guy ' have some device that can transfer the files from D to another harddisk that have extra space... so the file still can be safe. They use a special high end tools... Is it true?

P/s: Hope all of my important file still can be safe... May the force be with me.... ( star wars episode 3- 4 bintang )

Assalamualaikum(Melayu la senang sikit...BI x terer )

Virus tu...HDD light blinking mcm mane ???Lame mcm time Windows start ke ???Pasal PC saya time starting Windows tu 'berlumut' tunggu ::)Ade problem ???cos time baru beli dulu...lepas start Windows aje dah boleh bukak mcm2...x payah tunggu lame

Lg satu,
Time surf net...awal2 PC speed ok
then bile dah lame sikit...makin slow
Spyware ke

Last,
HDD saya ni...x gune pon die makin lame makin penuh
Ade yg cakap die pakai space utk System Restore
ade pulak cakap cookies
yg worst...ade cakap HDD ada bad sector
u rase

Thanks

Wa'alaikumsalam Wr. Wb.

Memang le masa baru beli PC semuanya laju. Setakat ada Windows OS saja yg di'install'. Kemudian, masuk pulak MS Office, games satu dua... itu semua akan menambahkan beban kpd PC.

Saranan adalah utk 'uninstall' mana2 software yg dah lama tak pakai atau tak perlu.

BTW (By The Way), you haven't publicise your PC specs yet. At least by looking at your specs, we should be able to help you solve your PC problem remotely.

About System Restore, there are pros & contras in having it running. Personally, I always disable the System Restore. A few reasons:

1. Slows down system performance. Reason.... I'm not so sure but whenever I disable it, system goes smoother & better. It's not doing any 'online backup' or what, but it's still in the way....
2. Most of the time, when a PC have been infected by virus, the virus manage to hide itself in the System Restore area, which is usually write-protected.
3. I don't really need to use the restore facility 'cos I simply reformat & reinstall fresh instead of using the System Restore mode.

About Cookies, try to clear your cookies once a week. You can do this by:
1. Click Tools at the menu bar, choose Internet Options.
2. Under General tab, look for Delete Cookies, then Ok.

My advise to M_Syafiq, the best is to reformat your harddisk. For me, I usually do a fresh 'reformat & reinstall' once every 6 months.

Ciao
 

[M_Syafiq]

Assalamualaikum(Melayu la senang sikit...BI x terer )

Virus tu...HDD light blinking mcm mane ???Lame mcm time Windows start ke ???Pasal PC saya time starting Windows tu 'berlumut' tunggu ::)Ade problem ???cos time baru beli dulu...lepas start Windows aje dah boleh bukak mcm2...x payah tunggu lame

Lg satu,
Time surf net...awal2 PC speed ok
then bile dah lame sikit...makin slow
Spyware ke

Last,
HDD saya ni...x gune pon die makin lame makin penuh
Ade yg cakap die pakai space utk System Restore
ade pulak cakap cookies
yg worst...ade cakap HDD ada bad sector
u rase

Thanks

Greetings

Bro Jamal...u TERtinggal yg ni la
n the reasons 4 doing partition is....
Say...done partition...got Drive C, E n F(D is CD-ROM rite )
If F infected by virus whatsoever...will others hv some kind of effects on them ???slower operation maybe

Thanks

Banyak sebab saya buat partition harddisk. Salah satunya ialah utk keselamatan data. Apabila terjadi kes sepert sedara Don_Laforo kita diatas tu, kita masih selamatkan data2 yg dlm harddisk C. Jika harddisk mengalami masalah teknikal, dgn adanya partitioning, kita masih boleh 'access' harddisk tersebut.

Jika tiada partitioning, seluruh harddisk dianggap 'inaccessible' & goodbye to all the data.

Satu kes extreme partitioning ialah, user ini telah membahagi2kan harddisk 80GB into 8 partition of 10GB each:

C: System
D: CDRom
E: MS Office
F: Strategy Games
G: Simulation Games
H: Images
I: Videos
J: ... (censored aledy)

Ada eloknya tapi akan melembabkan operasi disebabkan sistem terpaksa melangkau partition utk satu2 program/application.

Tentang virus, ianya berfungsi tanpa mengira lokasi. Virus usually infects system files to work their things. They are not limited to which partition or which drive they are on. As long as they are running, it will infect the system & not data files. When they are running, whatever application you run at that time will get infected also.

You can detect if there's a virus running by looking at the 'activity light' in the front of the CPU. If the red light keep blinking eventhough you are not doing anything or there's nothing running on the screen, then most probably a virus is doing its thing!

Nowadays I'm not too concern with virus 'cos it is easily detected by any antivirus s/w available. My main concern is 'spyware/adware'. They not only slow down the system but will even hijack your surfing by redirecting your surfing to their parent website.  

I'm using NAV 2004 for my antivirus & Giant Spyware (now known as Microsoft Spyware). Giant was so good in detecting & eliminating spywares that Bill Gates decides to buy the company instead of developing a new anti-spyware! Don't know whether it's still free to download it @ www.microsoft.com.

Ciao
 

[M_Syafiq]

Greetings

Bro Jamal...u TERtinggal yg ni la
n the reasons 4 doing partition is....
Say...done partition...got Drive C, E n F(D is CD-ROM rite )
If F infected by virus whatsoever...will others hv some kind of effects on them ???slower operation maybe

Thanks

It is true that every each drive ( C & D ) must have at least 10% free space other wise the drive will get cravy/need to format?

My case is i have transfer a big amount file to my D drive, so now i can't open the drive. It say 'Need to format'. what should i do? i don't want to format the D drive. I check it's properties, the circle is full blue. (No space at all) That is why my driver cannot be access?

Is there any other way to save all of my file inside that drive? Pls all PC expertizezz. I need you all help.
 Code Red!!

Also one more thing, why my PC sometimes restart by it self while i'm using it? during i do my job. Is the Ram got problem? Some people said Ram problem, some said got virus?

Thank you...

Sori, intermediate class tumpang lalu... PC Expert masih berada di trek TTWangsa...

What's your spec?

Setahu saya, bila 'free space' reached 10% or less, a warning will be triggered, asking user to clear up space. Takkan sampai langsung tak boleh access.

Kalau dah message 'Need to Format' keluar, bermakna ada masalah. Seelok2nya, cuba guna 'Disk Cleanup' (kalau guna XP). In fact, the system will prompt you automatically once the threshold was breached (less 10% free space). Once done, proceed with Disk Fragmentation.

Kalau tak boleh access jugak D Drive, cuba bukak & attach the harddisk as a secondary harddisk to another PC & try to access it.

Err.... any important data in that D drive? Be prepare to lose it 'cos from my experience (yg tak seberapa banyak), the harddisk is having hardware problem & not 'cos of your action of transfering big file.

One last question, did it manage to successfully transfer the big file? If not, then the file might get corrupted & the system will take sometime to read info from that drive. Try to access the harddisk even if it takes a long time to read.

As for your 'booting sendiri', try booting as Safe Mode & uninstall the last software or hardware that you have installed before the problem start to surface.

Virus attack is a possibility, corrupting Windows system files. If you cannot boot as Safe Mode, try booting using XP CD (if you're using XP) & reinstall XP. Before doing anything, try to save your data first (most important files).

Ciao
 

Greetings

Tumpang lalu sikit
Tell me more about this...esp. reasons
Saw most of my cousins doing it too...but I don't know how to do it

Thanks

Mana pulak all techie expert ni.... mesti semua tercogok kat trek TTWangsa ni...

What's your PC spec? If you're using XP, very easy to do.

If new harddisk:
1. Boot PC using XP cd. From there, just follow instruction to partition.
2. Advisable to set 20GB minimum for C drive.

If old harddisk:
1. Save all data onto Pen drive or burn onto CD.
2. Refer to step 1 for new harddisk instruction.

If you have a 20GB harddisk, don't partition. Just buy a new 40 GB harddisk and set it as slave or secondary harddisk.

K.I.S.S.