I have just joined. I have a problem I hope someone can solve. My PC is very slow. I downloaded FREE REGISTRY FIX. It found 900 errors. It fixed 100 then said I had to pay. I removed program from add/remove programs and did it all over again. Each time I did this it fixed +- 100 errors. After about 7 times, could no longer open add/remove programs. I can no longer open any .exe file! How can I fix this?