Ashampoo WinOptimizer 2019 is a comprehensive PC maintenance suite which can help clean, optimise and protect your PC.

The program opens at the Overview page. Click Scan and it goes to work, quickly checking your system for problems. These might include junk files, poorly configured browser and Windows settings, broken Registry keys, space-hogging and more. Issues can be viewed individually, or you can have Ashampoo WinOptimizer 2015 resolve them all with a click.

While this is all reasonably useful, the true power of Ashampoo WinOptimizer 2019 only becomes obvious when you click the Modules button. You'll discover individual tools to manage your startup programs, control Windows services, optimise your internet connection, clean the Registry, explore your hard drive use, free up drive space, securely delete files, and a whole lot more.

Some of these modules are small. One enables you to save the icon layout on your desktop, for instance, and recall it later: that could be useful, but only occasionally.

Others are much more significant. DiskSpace Explorer analyses your system and displays detailed reports on how your drive space is being used, perfect for locating bulky files and folders. "Tweaking" gives easy access to more than 100 hidden Windows and application settings. And "Startup Tuner" not only displays your current startup programs but displays ratings from other WinOptimizer users to help you decide what to keep.

While most of the individual modules can only be run manually, WinOptimizer is able to run all its core cleanup tasks with a click. Alternatively, you can schedule them to run automatically at a specified time, even if you're not around.

We're a little wary of allowing any tweaking program to do that, as any mistakes could seriously harm your PC. Fortunately, WinOptimizer automatically backs up any Registry changes it makes, and if you do run into problems then you're able to undo any recent tweaks in seconds.