ANNOYING PROBLEM REAPER NOT SAVING VSTs

Hmmm it sounds like to me what i could do instead of a hard reinstallation is just install the 32-bit version? Seems to me the problem is likely that the plugins that are crashing aren't supported by the 64-bit version.
 
Ditch the random freebies, only run trusted company vsts or really, really well known and simple vst. I have ONLY had problems with reaper when using unstable plugins which btw I thought were stable. Things like free synths and so on.