Hi,Will
Some of your programs can not be open because some of the shared dll files are deleted. When you uninstall some other programs you don't need,you also deleted those shared dll files,so when windows registry calls up those dll files,they are absent,so you failed to open some programs which share those dll files. This is also a kind of registry problem. Advanced PC Tweaker is a computer opitimizer,also a regirtry product,so let it to fix your problem and use it to creat backup for registry before you make any change so that you could bring back your computer to the previous stage.
