Best Windows Computer Junk File Cleaner

Why do you need an all-in-one computer junk file cleaner?

Junk files on a computer refer to various types of temporary, redundant, or unnecessary files that accumulate over time as a result of regular computer usage. These files serve no productive purpose and can often lead to several negative consequences.

Generally, your computer will store these junk files.

Temporary internet files
When you browse the web, your browser stores temporary internet files, including cached images and web pages. While these files speed up page loading, they can consume disk space over time.

System logs
System logs are generated by the operating system and various applications to record events and errors. While these logs are essential for diagnosing issues, they can accumulate and fill up disk space if not regularly managed.

Temporary program files
Many software programs create temporary files during their operation. These files are meant to be deleted after use, but sometimes they remain on the system, taking up space.

Old backups
Backup files are crucial for data recovery, but outdated or redundant backup files can become junk over time, especially when new backups are created without removing the old ones.

Recycle Bin contents
Files deleted by the user are initially moved to the Recycle Bin. If not emptied periodically, the Recycle Bin can accumulate a substantial number of files, consuming space.

We can't say that these files are definitely useless files. They were helpful but not now. That's why Windows don't clean these files automatically. If you don't manually remove them, the menace of junk files can result in the following issues:

Reduced disk space: As junk files accumulate, they can significantly reduce available disk space. This may result in low disk space warnings, making it challenging to store new data or install software.

Slower performance: A cluttered hard drive can lead to slower system performance. It can take longer for your computer to boot, launch applications, and perform tasks.

System instability: Large amounts of junk files can lead to system instability and errors, as they may interfere with the normal functioning of your computer.

Risk of data loss: In some cases, essential files or data may be deleted accidentally when cleaning up junk files. This can lead to data loss if proper precautions are not taken.

Reduced productivity: Sluggish performance can hinder productivity, making tasks take longer than necessary.

To address these issues and prevent the negative consequences of junk files, it's essential to regularly clean up and remove unnecessary files from your computer using tools like disk cleanup utilities or dedicated software, as well as taking precautions not to delete essential files accidentally during the cleanup process.

A versatile computer junk file cleaner for Windows users

In the Windows system, you can use Disk Cleanup to delete temp files and cache files, you can clean system junk files via employing advanced Disk Cleanup settings, or there is Storage Sense to help you do file cleaning. And if you are familiar with the CMD, you can run different commands to clean files.

However, if you can clean all junk files and duplicate files just with easy clicks, wouldn't that be more efficient? In this case, we suggest you try AOMEI Partition Assistant Professional, your comprehensive solution to tackle the menace of junk files and duplicate files effectively.

This powerful software is designed to optimize your computer's performance and help you regain precious disk space with ease. It is a feature-rich disk management software trusted by millions of users worldwide. It offers a user-friendly interface and an array of powerful tools to enhance your computer's performance, including the all-in-one PC Cleaner, Duplicate File Finder, and Delete Large File functions.

Opt. 1. Run PC Cleaner to clean junk files

Managing disk space remains a persistent challenge for computer users. AOMEI Partition Assistant's "PC Cleaner" feature provides a solution by conducting a thorough scan of your device and intelligently categorizing unnecessary files for removal. No matter the Cache files, temporary system files, installer files, and Thumbnails, following the scan, you have the option to either initiate a comprehensive cleanup by selecting "Clean All" or tailor the deletion task for specific files, aligning with your preferences.

Step 1. Download and open AOMEI Partition Assistant.

In the main window, click "Free up" and "PC Cleaner" in turn.

Step 2. Scan the junk files on your PC.

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

Step 3. Wait patiently to scan the junk files.

Step 4. Clean selected junk files.

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.

Step 5. Finish the cleanup.

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

Opt 2. Delete duplicate files safely

The "Duplicate file finder" function is a very useful computer software. When your system has a lot of duplicate files, it needs to go through a lot of them. Manually searching duplicate files in a computer is a time-consuming process. The searching is often paused because File Explorer takes too many resources. So, a handy tool would be a better choice.

Step 1. Go to the "Duplicate File Finder" function.

Click the "Free up" on the main tab and select "Duplicate Files Finder".

Step 2. Choose the scanning location.

Here, all partitions on your computer will be displayed. You can personalize it according to your needs and click "Scan". In addition, if a partition is locked, the program will still scan it and display duplicate files on the partition. However, it is unable to delete the duplicated files on the locked drive.

Step 3. Preview the scan results.

After the process is finished, all duplicate files that meet the conditions you set will be displayed. You can click the "Preview" button to see the duplicate files.

Step 4. Move or remove duplicate files.

You can select the duplicate files you want to delete. Or, click "Smart select" to automatically select duplicate files. Then, click "Move to folder".

Opt 3. Completely delete large files 

The "Large File Deletion" capability of this smart software can automatically scan both drives and directories, compiling a list of files exceeding 16MB in size. Certain files will be flagged in red, requiring cautious handling. To eliminate them, a simple click on "Delete Now" will suffice.

Step 1. Download and open AOMEI Partition Assistant Professional.

Click "Free up", then click "Delete Large Files".

Step 2. Scan the target drive.

In the new interface, all partitions will be listed, you need to tick the target partition and click "Start Scan". (Only the system disk is ticked by default, if you click "Start Scan" with no partition ticked, the tip "Please tick the folder or partition to be scanned and try again" will pop up.)

Step 3. Choose the target large files.

After scanning, you can see all the large files, some important large files that you need to pay attention to will be marked red. Tick the large files you want to delete and click "Delete".

Step 4. Delete all selected files.

In a new window, there’s summarized information about all the target large files, you can see how much space you can get by deleting them. Click "Delete Now", then all target files will be deleted.

Final words

A practical computer junk file cleaner can save your energy and time. And the most important is that it can avoid mistakenly deleting. AOMEI Partition Assistant gives you a perfect answer to efficiently clean all kinds of junk files on your computer. What's more, you can also use this tool to manage drive space via allocating free space and merging partitions. And if you want to fundamentally solve the problem of insufficient disk space, this tool also has cloning function to allow you to upgrade disk without reinstalling anything.