What Changed is a simple utility that searches for modified files and registry entries. It is useful for checking program installations.
There are two steps for using What Changed: 1) First, take a snapshot of the state of the system 2) Second, run What Changed again to see the differences from the previous snapshot.
Wise Registry Cleaner scans the Windows registry and finds incorrect or obsolete information in the registry. This is one of many tools included in the Wise Care 365 free suite.
RegCleaner is an easy-to-use program. With RegCleaner, you can easily get rid of those old and obsolete registry entries created by software that you destroyed ages ago.
Tweaking.com - Registry Backup is a backup tool that uses the Windows Volume Shadow Copy Service to backup your system registry. From the author of Tweaking.Com - Windows Repair.