BleepingComputer.com: policies/explorer/bad 1 good 0

Hello

I bought a pc vista yesterday.
I ran malewarebytes right away. It said a file was infected. A registry file ending with highjack proprieties. I read on a forum it was to be ignored. I clicked on ignore.

I opened malewarebytes today and clicked on the exclusion tab
It reads:
hkey_local_machine\software\microsoft\windows\currentversion\policies\explorerBad (1) Good (0)

I did not put any file in the exclusions.
Do I have a virus doing things already?

thank you

Did the log have "0"s such as this?

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0