BSoD issues...

Hi all,

I've been having some issues with BSoDs, and can't seem to find a solution anywhere. I haven't updated anything recently that I know of (other than a windows update which occured a few days after the crashes started), and I've uninstalled my virtual drives and updated run the SPTD uninstaller I found in a previous thread, but still get the crashes.

If left off for a long period of time, my PC crashes a few minutes after startup. A restart fixes it temporarily, but the issue returns the next day. The BSoD seems to say a different error each time. I've had;

-- BAD_POOL_CALLER
-- IRQL_NOT_LESS_OR_EQUAL
-- BAD_POOL_HEADER
-- PFN_LIST_CORRUPT
-- And one time it stated no error, just the stop string afterwards.

I've uploaded the file indicated in the posting guidelines, if anyone could take a look and try to diagnose the problem it would be really appreciated. My abilities of fixing these errors are limited at best.

Thanks

- Vista x86 (32-bit)
- Original Installation
- OEM
- System is close to 3 years old
- OS was reinstalled after a wipe-to-factory-settings close to two years ago.

It is difficult, at best, to diagnose with only one dump. In this case, it appears to be your Symantec Anti Virus. Uninstall using the Symantec uninstall tool, then install and use Microsoft Security Essentials, report back.