A few weeks ago a friend borrowed my laptop (Dell Vostro 1510, running Windows Vista) and I believe he infected it with some kind of virus because all sorts of strange things started happening. In the end I couldn't manage to get a lot of different programmes to work including my AVG antivirus. In the end I did a backup of all my data onto an external hard-drive and completely wiped the computer and reinstalled it. I had run a lot of virus and spyware scans, which found nothing, but even those programmes had been disabled and I was unable to turn my firewall back on. It also kept saying I didn't have administrator privileges to do various things. Anyway...whatever it was, I reinstalled everything from scratch, successfully. I did not transfer all my data straight back across, just my work documents and my photos, as I imagine I have backed up the virus too and I'm not sure what to do about that.
All has been fine so far, until recently, very nearly every time I reboot, I get the message "One of your drives needs to be checked for consistency." When G (external harddrive) is plugged in it often checks that. When it is not, it checks D - recovery. I don't always let it run the check but when I have done, it says it has found no problems.
I tried typing fsutil dirty query G: or the same for D: in cmd and it came back with the message "The FSUTIL utility requires that you have administrative privileges" which has me worried because I DO have administrative privileges; I am the only user on this laptop, and it is reminiscent of all that went wrong last time!
If anyone has any ideas or can help me, I am so grateful.
Thanks so much in advance,