Cause:

After an update, the computer startup slows down or there is a longer waiting time for each operation, and the available space in C drive is reduced. The possible causes are as follows:

• Your computer's old operating system has not been deleted and is occupying space in C drive.

• There are too many temporary files in C drive.

Solution:

• Press the Win and E keys at the same time, right-click Windows(C:), and choose from the shortcut menu. In the Windows(C:) Properties window, select Disk Cleanup. In the Files to delete list, click Clean up system files, and then click OK.

  

  

• It is recommended that you install third-party apps on other drives.