First i would try to restore to an ealier date. If that doesn't work , Kaspersky or Dr Web rescue disc will get it. Both have free downloads of the continuously updated .ISO file and then you use it to burn the drive image and create the bootable rescue disc. All free. I have had my search corrupted before and a restore fixed it. I have also had some where I needed to run the boot drive anti virus.
Absolutely no where is safe anymore. I once got a virus from a site that showed the names , numbers etc for Lawyers in NJ. I also got one once when looking up old Irish sayings on sites on St Patricks Day.
Its a jungle out there!!
Oh , BTW , after I set up my system , I clone the C drive. I then unplug the original and run my system off the cloned drive. Anything that gets me so bad the rescue discs won't fix , I simply F disc , reformat and clone the drive again from the original. To make this successful I also backup my email and other important files etc on a second hard drive which is a removeable USB drive.
In a disater , reclone from ground zero, unplug the original drive ahain, copy the files I backed up from the removeable USB and I'm back in action..