Free scans from registry tools
Most major registry repair programs offer a free scan before you buy the full version of the software, so you can see if it’s right for you before you pay anything. You have to realize, though, that the amount of “errors” a program finds with your registry is just one part of the equation. A defective registry cleaner may find lots of errors, but when you tell it to repair them, it might just screw up your registry even more and leave you in a worse situation than when you started. So make sure you get a reputable program that has decent reviews.