Hi, I tried to reinstall windows many times on a laptop but it doesn't seem to work, Every time I try to do install a fresh copy of windows xp, it will report system file missing errors, and each time I reinstall it show different errors, but most of the time it say it's missing some files. Copy necessary file didn't help. Also, I can't get the laptop to boot into Windows XP installation, it just ignore it while different OS setup such as win 8 or 10 or linux distros work just fine. Another thing is every time it boot , it make a loud continuous beeping sound, but it still boot just fine. There is a chance that the Hard drive got bad sector though...