Registry errors are one of the main reasons for the slow operation of your PC or frequent crashes. Baku can ensure that if your registry does have malicious entries, they can be removed safely. Baku also deletes empty folders, 'History' folder contents, 'Recent documents' folder contents, 'Temp' folder contents and temporary internet files. It can also search Windows log files, shortcuts to missing files and folders and user specified file types. The registry scan itself aims to remove unused and obsolete keys, including ActiveX, Application Paths, Fonts, Help files, Icon files and pesky uninstallers.

Like all such programs, it backs up your registry in case of any wrongful changes although I found that this wasn't exactly easy to restore. Probably the most useful function is the registry compacting facility which does seem to make a notable difference to the running speed of your PC. The developers claim the program uniquely works by recreating each registry hive "from scratch", thus removing any slack space that may be left from previously modified or deleted keys. Note that this function does NOT change the contents of the registry in any way, nor does it physically defrag the registry files on the drive. Be warned though that it takes a little longer than programs such as CCleaner and you'll have to wait more than few minutes for the registry backup to be made.