[Aslyfox]

Whenever I click Standby, the computer goes into standby. Immediatly, after entering standby mode, the computer comes out of standby mode.
Sometimes it stays in standby mode, but it only does this every twenty to thirty days, and after it's worked once, it'll fail.

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Could be the graphics card

http://support.micro...kb;en-us;303544

Or power options

http://support.micro...n-us;310601#top

Or the network adapter

http://support.micro...kb;en-us;810719

There are probably a few more but see how it goes with these

[Retired Tech]

Could be the graphics card

http://support.micro...kb;en-us;303544

Or power options

http://support.micro...n-us;310601#top

Or the network adapter

http://support.micro...kb;en-us;810719

There are probably a few more but see how it goes with these

[Aslyfox]

My Wake-On-LAN is disabled, and I don't think it's my power options, as I haven't changed them.
My graphics card is a Nvidia Geforce FX 5500. I think this may be a problem, but if it was, then why would the computer be able to go into Standby mode occassionally?

[Retired Tech]

That's the unknown quantity

Perhaps a file is missing or corrupted, maybe you have different programmes running when you try standby and some combinations allow standy while others do not

This is a list of things you can do to check almost everything, they will check the integrity of the disc, the system files and the registry. You should also make a list of programmes and update all the drivers, where possible. I have put repair options in last, as you may well notice a change before then

Click start then run, type chkdsk /f /r then press enter, type Y to confirm for next boot, press enter then reboot.

This will take an hour, it will appear to load normally then either the monitor will show progress or the screen will go blank, do not disturb this.

Click start then run, type sfc /scannow then press enter, you need the XP CD and get a blue progress bar, when the bar goes, reboot.

Click start, all programmes, accessories, system tools to run disc clean up, click more options then clean up restore points, click confirm, click OK. Then from system tools, run disc defragmenter.

Click start then run, type prefetch then press enter, click edit then select all, right click any file then click delete, confirm delete, then reboot

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Run disc clean up then registry clean up then click optimize to run reg defrag, which needs a reboot

After the reboot, click optimize then system optimizer to optimize the computer, select computer with an internet connection from the drop down menu, this also requires a reboot

After the reboot, click optimize then system optimizer to accelerate downloads, select the speed just above your actual connection speed, this requires a reboot

After the reboot, click optimize then system optimizer to run system advisor

If no change, the next thing to do would be a repair install, this will leave data and settings intact

XP Repair

If you are unable to run XP Repair

Alternate XP Repair

Use the last one, Windows Installation CD to repair the current installation, which uses a slightly different method

[color="#3333FF"]Beyond this, it could be a hardware fault