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In my computer i installed two version of windows. When i am using Windows me then i can shut down corectly. But when i am using windwos Xp then i can't shut down my windows. When i am going to shut down then it makes little nois and then come back and display a message. now your cmputer is safe mode your can shut down your computer.Plz help me for that.

I don't know if this will help or not but had this same problem when i first intalled windows 2000. I fixed it by turning on Advanced Power Management. It might be the same for windows xp. It is under Control panel>power options for windows 2000. I hope this helps.

Start | Control Panel | Performance & Maintenance | Power Options | APM | then check the box marked "Enable Advanced Power Management Support"
Done Deal!

Does you're motherboard support ACPI or only APM? If it's an older motherboard/BIOS APM may or may not be supported by XP. What does you're BIOS support, APM, ACPI/APM? Now you know what to look for in Device manager.
If the APM tab is not located under Power Options, XP may not support APM for you're motherboard/BIOS or it supports ACPI or none at all. Try installing NT APM/Legacy support driver manually...if XP takes it..you're all set. If it doesn't, you're BIOS APM may not conform to the APM specification and it is tagged by XP...flash to a newer BIOS version.If that doesn't work...you're SOL.
Under Device Manager, click on Computer...is there an ACPI device listed? If it's not there, it probably didn't detect ACPI properly...if you're BIOS supports it.

I've discovered that if you have a UPS that connects to your PC via a USB cable that XP has fits trying to shutdown because it treats the USB as any other device and tries to shut it down over and over again until it finally just stops responding. The end result is that WinXP takes "forever" to shutdown and when it does finally boot, I get a "detected error" notification asking me if I want to send the stupid report to MS.

If you are running an old version of CD Creator, this can cause the same problem. Need to ugrade AND get the patch from the Roxio web site.

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