I got a strange virus, need help

[ryoken]

Ok here go's. Was serfing net, looking for a movie, and poof. I get this white screen saying my comp is locked pending investigation for down loading copy right material, ilegal software and so on. Pay $100.00 and comp will be unlocked in 72 hours pending investigation.
Now everytime i turn on comp, and go to administration account i get this white screen. I try safe mode, and comp reboots to normal mode. I cannot access nothing on Admin account.
Now i log into other user account(where i am now) and starts fine, so i know this is not real, but some type of virus/scam.
Anyone ever hear of this? Or should i just wipe drive, and re-install everything all over again, which i really do not want to do.

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