Disk cleanup allows a user to clear out unnecessary temporary files, helps speed up the computer, improves the performance of the hard drive also creates hard drive space. It’s a built-in Windows Maintenance utility.
To run system file clean up please follow these steps
Go My Computer or This PC and right-click on the operating system drive then go to Properties.
![system file clean up](https://usercontent.one/wp/www.cipher101.com/wp-content/uploads/2021/01/1-2.png)
Now click on Disk Clean-up
![Now click on Disk Clean-up](https://usercontent.one/wp/www.cipher101.com/wp-content/uploads/2021/01/2.png)
This will start the scan and may take time depending on your computer. Sometimes it can take several hours if you have never ran Disk cleanup.
![](https://usercontent.one/wp/www.cipher101.com/wp-content/uploads/2021/01/system-file-clean-up.png)
Once again another scan will start and once the scan is done, It will open the Disk clean up a window where you need to click on the Clean-up system files. Please scroll down the bar and carefullyselect the files you want to delete then press OK.
![](https://usercontent.one/wp/www.cipher101.com/wp-content/uploads/2021/01/system.png)
Once you press ok It will ask you to authorise to Delete files. Please note that it may take significant amount of time depending on your computers situation.
![](https://usercontent.one/wp/www.cipher101.com/wp-content/uploads/2021/01/ok.png)