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General discussion

Blue Screens After Windows 7 Upgrade

Dec 22, 2009 12:05PM PST

I have an Acer Aspire One which had windows xp. I upgraded to windows 7 and now I keep getting a blue screen which says bad pool caller or bad pool header. It happens randomly when using the internet and sometimes when shutting down. I tried reloading windows 7 which I think made the problem occur less, but it's still happening. I used a program called win to flash to create the bootable windows usb drive, could that be the problem?

I tried reloading the graphics driver but that didn't help. Could the problem be caused by the boot sequence? I had to modify it so it would boot from the usb, but I don't know if I have it back in the correct order.

Discussion is locked

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Try the simplest fix.
Dec 22, 2009 12:16PM PST

"USB ports in the boot sequence BIOS. Simply enter the BIOS setup and remove USB devices of the boot sequence: (boot sequence) "

Put the error message into google for more ideas. Sorry but I've found this one to never have the same two solutions in a row. Must be some dozen causes.

And was that a CLEAN install?

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Clean Install
Dec 22, 2009 12:22PM PST

Yes, since that's the only option from xp.

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And did you change the BIOS setting?
Dec 22, 2009 12:26PM PST
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BIOS
Dec 22, 2009 11:29PM PST

I haven't figured out how to change the bios settings yet. How and what exactly do I do?

Should I run a registry cleaner? Is there a good one that's free?

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Since the BIOS wasn't changed.
Dec 22, 2009 11:51PM PST

I'd look again into that. I think the BIOS versions change over time so I will not offer any step by step other than to write "change the boot order" so that my answer fits all versions.

Registry cleaners are known to create more issues. Not fix them.
Bob