Fyi: I Haven't used Windows 10 yet....

You said it was working fine before you had to do a system restore? Sounds like something bad happened to your computer. Do you have a backed up version of your wallet saved on a flash drive or something somewhere that wasn't kept on your windows operating system? Maybe the system restore screwed up your wallet?

I would take whatever backups of your wallet.dat that you have and save then completely delete everything Mintcoin related on your PC. Then download and install fresh. Wait for it to totally sync ( may take a week) or use the bootstrap, then still make sure the blocks are completely caught up with what the block explorer says. Then turn off the Mintcoin client and put in a backup of your wallet. Keep trying backups until you find one that works. If you keep getting error messages, let us know.