Skip this step if you don’t have licensing issues. Remove licensing storage files only if you are having licensing problems.It checks for corrupt registry keys and other issues that can prevent installation.
For Windows products, download, install, and run the Microsoft Program Install and Uninstall Troubleshooter (formerly known as Microsoft Fix It). If there is no Remove tool for your product, move the application file to the trash and then remove any residual files (see step 4 below). Uninstall peripheral programs (from smallest to largest) that were installed with the product before you uninstall the product.
To display the Run box, click START in Windows XP or 7 right-click START in Windows 8 or 10. Go to the Windows TEMP folder by entering %TEMP% in the Windows Run box and delete all the files in that folder.