The tech guy at my job told me that we don't use SP3 on our Windows XP machines. He suggested that I remove it from my home computer to make it run faster. I did. It didn't run faster.
I checked my computer at work and it DOES have SP3. (I should have checked first.) I tried to reinstall it at home and I can't. I have tried everything, even restore. Nothing works to allow me to put SP3 back on my machine. Now, other updates can't install either.
How can I get my home computer to accept SP3 again so I can keep up with updates?