1. Press +R on the keyboard.
2. Type cleanmgr.exe and click OK.

3. Select the drive you want to clean up and click OK.

4. Click Clean up system files.

5. Select the drive again and click OK.

6. Select all the check boxes. If you don't want to delete everything, select specific check boxes. Click OK.

7. Click Delete Files.

Determine which applications can be removed from your computer. Most often they are:

• Applications that were installed automatically alongside other applications, such as browsers or file managers. These applications are often configured to run at startup. This means that they not only take up space on your computer, but also slow it down.
• Applications without a current license. Remove these applications if you don’t plan to renew the license for them.
• Unused applications that were installed to complete one or two specific tasks. These are often file converters, photo or video editors, music players, and educational applications.

Such files include:

• Files with the extensions .tmp, .temp, .bak, .old and similar. Usually these files are left behind after editing documents or settings.
• Duplicate files. It’s almost always possible to find identical folders of photos, videos, music or documents on a computer.
• Files that you no longer need. These could be films that have already watched, but forgot to delete.

Delete them manually or use a special application for finding unwanted files.