Your computer gets slow many times while you work on any applications or programs in the Windows. The performance rate gets reduced due to many reasons like RAM issue, virus issue, sticking of the websites, registry issue, internet issue, etc. In this situation, you may get Windows is running too slow on the computer screen. You will not be able to work on the computer properly when your Windows performs very slowly. You can use many methods to fix the Windows issue or you can also use a third party automatic Advanced System Repair tool to fix tool slow performance issue in Windows.