There is an automatic mode that can start repairing your PC automatically, without any initiation on your part.
The main checks performed by this tool are related to shortcuts, unused system files, uninstalling applications, invalid file extensions, the Windows registry, etc.
Kerish Doctor can also detect if there are any viruses or spyware hiding in the computer, although an antivirus program dedicated specifically to that task would do a more thorough job.
Optimize the speed of your PC, check its security, fix the start menu ... you can do all this and much more with this lightweight application.
The 15-day trial version does not solve all possible problems.