Keep getting logged out of sites (IE)

[Retromatic]

I reformatted a couple of months ago and a few times a week I seem to get a random crash of the operating system (Windows 7 64-bit).

When I reboot I find I'm logged out of all websites (even though I ticked the box to always keep me logged in), any ideas please?

 

[Scuzzy]

run scandisk, chkdisk or even memtest

 

[Mr-White]

do a virus scan

MW

 

[Retromatic]

Nope nothing for any of those