I gave my usb flash memory to a friend
this friend downloaded a program which supposed to clean his computer
it was a virus which changed all his folders to shortcuts
when I took the usb flash memory and connected it
I found all the folders ON IT are shortcuts (not the folders on my computer)
then I found my avira real time protection service stopped working (Note: my folders didn't became shortcuts)
next I couldn't show any official anti-virus site
after that the internet connection wasn't working anymore
when I restarted the computer the internet connection worked
except the avira 2012 so I removed it
and tried to install nod32 (failed)
also to install bitdefender (failed)
and I had a problem in my movies folder there was a a movie folder inside it without the folder icon when I drag to it the windows explorer restarts
so I deleted all the movies

oh I forgot I also found the empty space in the C drive decreased
what can I do to install a good antivirus and clean my usb flash memory??
I'm using Windows 7 Ultimate


