Webuser Forums: PC crashing regularly

Been having problems with the PC crashing over the last few months - but it's got really bad lately - a blue screen appears which says the following:

A problem has been detected and windows has been shut down to prevent damage to your computer

The problem seems to be caused by the following file: avg7core.sys

PAGE_FAULT_IN_NONPAGED_AREA

Then some more about "if this is the first time".....etc.

If you need more info on that I can post it, but I'd guess the main info needed is there - looks like something to do with the AVG anti virus? It also only seems to happen when I'm using Firefox - Been using IE for the last couple of hours and it's been fine. Previous to that, in Firefox, it crashed several times in an hour.

I have now uninstalled AVG 7 and installed AVG 8 - it was ok for a week, but is now crashing regularly again.

Yesterday I had a blue screen which said "Machine Check Exception"

I did the error reporting and it directed me to a windows page saying:

Problem caused by computer hardware

This problem was caused by an unrecoverable hardware error that caused the operating system to stop functioning.

Troubleshooting

If you have received this error more than once, it could indicate a serious problem with your computer. We recommend that you do the following:

1. Back up your files to avoid data loss in case of a complete hardware failure.
2. Contact the original manufacturer of your computer to determine the specific component which is failing.

Can anyone help?

Thanks

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