Windows Vista is notorious for being a system hog just by itself.  It has massive system requirements, and if you don’t have a top of the line system then you’re going to have a hard time running it at top speed.  If your Vista system is running sluggishly then you should get some more RAM.  If that doesn’t help then it might be useful to try some registry cleaner programs.

The best Vista registry cleaner will allow you to sweep up the registry and get rid of all the obsolete files and invalid, corrupt registry entries that tend to build up in the registry over time.  This can cause a multitude of problems.  However, cleaning the registry is easy thanks to these special software programs.  I highly recommend RegCure if you’re looking for a good Vista registry cleaner.