I HAVE NOTICED A CHANGE

Question

I HAVE NOTICED A CHANGE IN THE ALREADY BAD PERFORMANCE ON MY ACER 5570Z LAPTOP. I HAVE RECENTLY INSTALLED SOME WINDOWS UPDATES AND RIGHT AFTER THAT I NOTICED A CHANGE IT IS RUNNING REALLY REALLY SLOW. NOW I HAVE VISTA H/P 32 BIT AND I HAVE TRIED TO DO A RESTORE PAST THE UPDATES AND IT NEVER WORKS I KEEP CLICKING ON DIFFERENT POINTS TO SEE IF AT LEAST ONE OF THEM WILL COMPLETE AND WELL I HAVE RUN OUT OF RESTORE POINTS TO TRY PLEASE HELP ME RESTORE MY WIFES ACER