HijackThis log posted. Multiple problems.

[originaldeadman]

Hey everyone, Im using Windows Vista Business on my Dell Vostro 1500 laptop and I have been having some problems recently. I got multiple bluescreen before which turned less frequent after i started using Systweak's Advanced Vista Optimizer 2008. I posted my log in an online log analyzer (http://www.hijackthis.de/) and it marked my registry cleaner as bad. Should i remove it? I also have slow speed on my pc when i open folders and documents.

Thanks in advance.

PS: Attached is my HJT log.