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Blue screens and norton errors
About a week ago I opened a program a friend gave me and it worked fine however I started getting a 3048,3 error from norton. It advised my to run power eraser and I did and it has found nothing. After that I started getting blue screens saying irql_not_less_or_equal which were followed by memory dump blue screens which i can't remember the error code for. These occured mainly when I tried to start norton on a scan.
In the meantime, the internet has gotten very slow.
I have run a memory test from the bios which came up with no errors and also ran the norton bootable recovery tool which showed no results. I have also used malware bytes to run a scan to no avail and a clamscan from a linux boot to detect things but everything has come up clean
I think there's something wrong because the internet is still really slow where as before there was no lag in response times. This occurs both at home and at university so I'm pretty sure it's not my connection.
Also, microsoft occasionally reports that norton autoprotect is off, and at some point when I checked it was off in the norton window, but that problem has also gone away (suspiciously?)
What further things can I try to do? Is this a rookit or something more malicious?
The blue screens seem to have stopped for now.