I was fortunate enough two nights ago to eliminate a virus from a laptop. I used Malwarebytes Anti-Malware. Prior to using this free tool, though, I used a purchased tool called System Mechanic.
This System Mechanic tool did a good job, in that it optimized the hard drive, so that the laptop would actually allow me to do a Windows System Restore. Prior to running System Mechanic, I had not been able to run System Restore.
In the future, if I'm not able--for whatever reason--to have such a purchased tool, what free tools out there would do the job just as well?