Cleaning your PC/laptop is necessary when your computer becomes slow in operation.
To clean your hard disk, follow these steps for a windows 10 PC.
Locate the search icon on your desktop screen and click on it.
Click in the search bar and type; My PC.
Click on ; MY PC app to open.
Locate local disk C or the name given to your primary harddisk.
Right click it then click properties.
Then click Disk cleanup.
Computer then searches out items you can delete.
Click check boxes of items you want to delete.
The computer gives you final warning on files you have chosen to delete.
Click, delete files.
The computer then deletes those junk items off your hard disk.