Hi naturemum and welcome to Vista Forums

Quote: Originally Posted by
naturemum I ran some stupid Registry First Aid program on the computer and suddenly, a bunch of things on my computer are going wrong.
This pretty well gives you the answer as to why you are having problems. Try following the instructions in the following Tutorial
System Files - SFC Command to see if it can help you, but given the sort of problems programs like registry cleaners can cause, it is quite possible that this program is also one of the casualties. In which case, follow the appropriate link within the Tutorial for instructions on reinstalling Vista. This time, make a mental note NEVER to run registry cleaners without getting expert advice.