I am the same person who initially created this post. In a further attempt to fix this issue I downloaded an offline installer for the previous version and re-installed avast free like this. This didn't fix my problem and was gonna say the heck with it and just start saving my passwords again from scratch however I found that it was rejecting my master to begin syncing, despite my knowing the password was correct, and I thought if I deleted the above account and created this account that I could simply start anew with passwords. That didn't work in the end so as a last ditch effort to at least be able to use passwords again, I uninstalled via control panel, Cleared the cache, erased the registry files, and deleted all the files associated with my previous installs of avast. After doing all this I reinstalled and now I can at least use passwords again. But this has been a headache and a half. As a side note I would like to know why the above post still exists if I deleted the account associated with it and if there is a way to maybe combine my account(s) so I may still use the poster name 'Kimika'.