1. Save any files you are working on and close any running applications.
2. Click the 'Start' or 'Windows' button in the lower-left corner of your screen.

3. Click the right-facing arrow next to the 'Shut Down' button. A menu opens.
4. Click the 'Restart' option from the menu to restart your computer. As Windows boots, it will automatically check for and repair any registry errors using the native Scanreg.exe tool.