With a cool head and a little know-how, it's easy and mostly free to fix the most common computer problems. 1. Speed up a sluggish PC: If your PC is fairly new and it's slow, remove the pre-installed ...

Could be: A software problem. The fix: Run a full antivirus scan to make sure you don’t have any malicious software tripping up your computer. If malware isn’t the problem, get into your System ...