In 2 decades I have yet to see it be the registry. I have seen clogged vents, heatsinks full of lint, dust and heat sinks that need fresh heat sink compound. I think most have never heard that a yearly cleaning is required. More at:
Starting up my pc (xp home) I get ready to start, click on an icon, it freezes, sometimes I just get to the password and it will freeze. The only way to use computer is to start in safe mode and then restore to a previous time, and then it works fine.Have cleaned registry, run scans, but to no avail. Any ideas.