Question : Windows XP Problem

Someone gave me a laptop to fix without much to go on.  They said it has some spyware.
When I boot up I cannot install any spyware/adware removers.  I boot up in safe mode and I still cannot install the applications.
How can I install the programs?  

Answer : Windows XP Problem

Just do one thing, remove HDD of this laptop and fix it in some external USB case. Attach this to a machine having updated antivirus installed and run a complete scan in safe mode on that system (You may select custom scan and choose only this hdd to scan). Make sure this won't run as autoplay on another system.