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Unable to re-install Windows 7 after Trojan
Hi,
My Sony Vaio i3 came with Windows 7 pre-installed on the system - activation code on a label under the machine, no disks.
I've now got a fairly serious Trojan wreaking havoc on my system and according to AVG the only way to rid it is to wipe Windows and start again. This doesn't bother me, I have all my essential files backed up and the system was running slow for a while before this anyway. However, for some reason I can't seem to re-install Windows. I have no backup (I know, silly me, please don't point out how stupid this is) so I have no restore point that I can return to.
When I tried to re-install Windows earlier I was told some of the restore files were missing and the operation would be terminated.
Any help would be greatly appreciated on this, just so I can blitz everything my system and start from scratch. I have moderate knowledge of computers but nothing amazing.
Thanks for any help.
Edit: Just scanned with Avast and the reason the file cannot be cured is because it is read only - the original file has been deleted and replaced with the Trojan.