house cleaning my computer

[tw]

Originally Posted by Lamplighter

My daughter's PC is starting up with a program "UniBlue Registry Booster 2012"...
It reports it found 480+ errors, and asks if I want to fix the errors,

That program was downloaded by techniques also used by malware to infect a computer.

Second, the 480 errors are mostly irrelevant. Mostly exist because of point three.

Originally Posted by footfootfoot

Microsoft sucks. One program left behind about 1000 various registry items.

Microsoft does not do that. The uninstaller is created by the program manufacturer. He will often leave behind undeleted fragments. Either intentionally or due to no reason to be hygienic. Since you will never know, then why should he pick up the trash?

So, third, many if not all 480 errors are traceable to programs that do not clean up after themselves when removed.