[Explained] Does Cleaning PC Improve Performance?

When talking about “Does cleaning a PC improve performance”, the answer always is yes. In this article, we will explain why in detail and show you how to clean up the computer from the inside and outside.

Tina

By Tina / Updated on July 9, 2025

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Does cleaning my PC improve performance?

 

"My Dell computer is weird right now, running very slow and sometimes stuttering. I've tried uninstalling software that I don't use frequently, but with little success, so I decided to clean up my PC completely. Does cleaning my PC improve performance? Is there any recommended PC cleaning software? Any help would be appreciated!"

dell pc

Does cleaning your PC improve performance? The poor computer status is actually the result of a combination of internal and external factors. There're not only dust intrusions outside the PC, but also various junk files are hidden inside. Therefore, in order to improve performance of the computer, we need to clean up your PC from the inside out.

How to clean computer dust in a right way

Does cleaning out the dust on a PC improve performance? Dust outside the computer has a large negative impact on the performance of the computer, because it keeps the components in the main computer at a high temperature and reduce the operating efficiency of the entire system. Therefore, cleaning the dust outside the computer can improve the performance of the computer and prolong its life to a certain extent.

What can I do with the dust on my computer? You can learn from the following methods:

Step 1. Remove the dust with a vacuum cleaner and debris from the host computer before turning it on.

Step 2. Open the host computer with a screwdriver and remove the cover, you can see a lot of dust inside the computer, especially the graphics card, cooling fan, and the bottom of the case.

clean pc dust

Step 3. Remove and wipe the surface of all parts with a dry cloth, if the surface is uneven, use a brush to clean.

clean motherboard

Step 4. After dust removal is completed, close the cover on the side of the main chassis. When turned on the PC again, its performance may have improved.

close case

How to clean junk files to free up space

Does cleaning PC improve performance? If users left junk files uncleaned on the PC, they still can’t completely solve the problem of slow PC, even if the dust has been swept off. In order to speed up your PC and improve its working efficiency, we also need to regularly clean up the junk files. 

After getting the affirmative answer of "Does cleaning your PC make it faster", you may need a reliable junk file cleaning tool. Here, we will recommend AOMEI Partition Assistant for Cleanup for you.

You can download it for free and use its "PC Cleaner" function to comprehensively retrieve all junk files in the computer, especially system and registry junk files. Then after choosing the target junk files according to your own requirements, the "Clean All" key can completely expel them from the computer.

AOMEI Partition Assistant for Cleanup

The Best Windows Disk Partition Manager and PC Optimizer

Step 1. Install and launch AOMEI Partition Assistant for Cleanup. Click the "Delete Large Files" tab.

Delete Large Files

Step 2. You can either click "Scan System Drive" to start the scan of your system C: drive. Or, click "Custom Scan" to manually select paths to be scanned. (Here, we take the "Custom Scan" as an example.)

Custom Scan

Step 3. After clicking "Custom Scan", all local and external drives on your PC and the common Desktop, Documents, and Downloads paths will be displayed. You can manually select paths to be scanned. Once necessary paths are added, you can click the "Scan Now" button to start the scan process.

Select Paths

Step 4. The scan process might take time. After the scan is complete, all large files found will be listed.

Listed Large Files

Step 5. You can also check the large files and click the button behind to locate them.

Locate Large Files

Step 6. Tick the files you want to delete, and then click the "Clean Now" button to start the deletion.

Clean Now

Step 7. The deletion might take time. After the process is finished, the selected files will be deleted, and you will get a cleaning completed window displaying how much data you deleted in total. 

Clean Completed

Step 5. Just for a while, the large files will be deleted successfully, and then you will see a warm notification suggesting you clean up your PC regularly.

Last words

Does cleaning PC improve performance? In this article, we have given the answer and brought you a free computer cleanup expert which you can trust. 

Tina
Tina · Staff Editor
Tina is an English editor of AOMEI Technology. She has a positive attitude and full of energy. On her work, she always keeps thinking to figure out the solutions for users' problems, and writes the answers so that can help someone. In her daily life, she likes to sing, watch TV and sleep. She always being grateful and happy to all the things happened and all the people encountered.