Computer running slow, is there a free registry cleaner I can use?

Just over the past few days my pc is running very very slow, it takes about 15 seconds to open or view something whereas before it was instant. It isn't my internet connection as it is slow when I am not connected and just viewing from local disk, there is plenty of RAM and plenty fo free file space and I am not running any background programmes at start up. I have a reliable antivirus that is upto date. I have done a de-frag, emptied any unnecessary folders and history, but still it's soooooo slow. Someone suggested I clean my registry files but I am unsure what to use to do this, can anybody suggest a FREE download that works, I have to get this thing faster it's driving me crazy!! Thanks.

Computer running slow, is there a free registry cleaner I can use?agv

Here ya go, This tool has a registry cleaner in it, I use it daily and works well, you can also see what runs at startup and it will also immunize against infections from spyware,

This tool is an optimizer with a registry cleaner and imunization tool against infections from the internet,

http://www.download.com/Advanced-Windows...

SG

Computer running slow, is there a free registry cleaner I can use?antivirus software

Vista, eh? Serves you right.
http://www.freedownloadzone.com/ver2/ord...
Have you tried running defragmenter on your hard drive? It is under programs, accessories, system tools. It will move all components of an application, document, etc. to a single spot on your hard drive so that access is faster.
The only safe reg/file cleaner is Ccleaner although it will not speed up your computer defragging will ,Jkdefrag free and better than windows defrag will help keep your computer running faster.
Many would answer that Vista in itself causes systems to run slow. Others would say that Memory Chips deteriorate with age and slow down. Why not step your ram up to two gigabytes for the sake of a few pounds via Crucial at this link: