Best PC System Cleaner for Windows OS

In this post, you’ll find the best PC system cleaner for Windows systems and how to use it to clean junk files and free up more space on the drive.


By Lucas / Updated on May 12, 2023

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When your computer starts to run slowly, a PC system cleaner might give a noticeable speed boost. Your system will generate numerous data files to make sure the required programs can boot and run smoothly. Most files will soon be outdated after they serve for an instant operation, such as various cache files, temporary system/program files, Thumbnails, etc. Your PC even generates large recording files after each time you call hibernation.

The thing is all those junk files will keep on your disks and most of them are stored deeply and separately, which greatly hindered the thorough system cleaning task for users.

Use the best PC system cleaner to remove junk files

To clean the system and disk, Windows system offers users some built-in tools like Disk Cleanup and Storage Sense, however, these tools only offer basic cleaning for the system. Many users find after using these tools to clean the computer, the temp folder still has useless files in it and the available space on the disk doesn’t increase much. This is because some files will be recognized as system files and they won’t be deleted.

Therefore, to completely remove junk files on your PC, you can turn to AOMEI Partition Assistant Standard, a free disk and partition manager for Windows 11/10/8/8.1/7/XP. It can scan all your disks and the whole system to filter useless data information and allow users to selectively delete them.

Download FreewareWin 11/10/8.1/8/7/XP
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Step 1. Download and open AOMEI Partition Assistant Standard, click "Free up" and "PC Cleaner".

PC Cleaner

Step 2. Click "Start Scan" in the new pop-up window to scan your computer for unwanted files.

Start scan

Step 3. After starting the scan, please wait for a while until the progress bar is loaded.


Step 4. Unneeded data will be automatically selected, you can directly click "Clean All" to delete them. If you still have other unnecessary files, you can tick the boxes of the corresponding files.

After scanning

Step 5. When you see a correct symbol displayed in the interface, you can click "Back" to leave the function.

Cleanup finished

Further reading: Free up more space on the disk

After deeply cleaning the disk and system, you can check the C drive to see whether there is more space on it. If you want to release more space on the system drive, AOMEI Partition Assistant can give your more practical advice. After you upgrade to the Professional Edition, you can use more functions to release available space on the drive.

Some users may install some programs on the C drive. Although you can change the storage location when you install them, some apps have been installed earlier. In this case, you can employ the “App Mover” function to move some apps to another location. And if you need, you can choose the “Move Folder” feature to move Users folders.

Step 1. Run AOMEI Partition Assistant, click “Free up” > “App Mover”.

App Mover

Step 2. In the new window, you can choose to move folder or move apps. Here, we’ll show you how to move apps.

Two options

Step 3. In the pop-up window, choose the partition that you want to free up via moving apps (here is partition C) and click “Next”.

Select partition

Step 4. In the window, all movable apps on the C drive will be listed. You can choose one or multiple apps that you need to move and the destination partition. Then click “Move” to execute the operation.

Tick app

Step 5. Confirm that you have closed the apps that you will move from C drive to D drive. Then, click "OK".


Step 5. Wait for the move process to complete. Then, click "Finish".

To sum up

The best PC system cleaner AOMEI Partition Assistant is a reliable PC system cleaner. It can solve many computer problems for users with easy operation. You can clone the disk to a better new disk with “Disk Clone Wizard”, or only keep OS on your new disk with “Migrate OS to SSD”. If you want to convert a disk to MBR/GPT but don’t want to clean data, this tool can offer you data-safe conversion. And there are many other practical functions for efficient disk management.

What’s more, this tool has the Server Edition for Windows Server users to manage their Server devices easily and safely.

Lucas · Staff Editor
I prefer peaceful and quiet life during vacation,but sometimes I watch football match if my favorite club performs brilliantly in that season. And I love reading, painting and calligraphy, thus I send my friends festival handwriting cards every year.