What to do if there are files with random numbers and letters in C drive? If you are looking for the answer, this post is what you need in which several methods are offered. Now, explore the content with MiniTool Partition Wizard.

After folders with random numbers appear on C drive, open them and you will see Wsusscan.cab and $dpx$.tmp folder. The Wsusscan.cab file often comes with every new security release. It contains metadata from the following categories: security updates, update rollups, and service packs.

These files usually should be deleted automatically after an update is finished. However, some installation errors during the update process might prevent that. So, you can see random numbered and lettered files on the C drive after you open this drive. Fortunately, you can remove them by using the methods below.

Method 1: Scan the System for Viruses and Malware

Windows Security or third-party antivirus software can scan the computer for viruses and malware, protecting your PC from attacks. The following steps show you how to scan the PC for malware via Windows Security.

Step 1: Open Settings by holding the Windows + I keys.

Step 2: Click Update & Security > Virus & threat protection.

click Virus threat protection

Step 3: In the next window, click Scan options.

click Scan options

Step 4: From the given options, choose a scan manner and click Scan now. In this scenario, we select Full scan.

choose a scan manner

Step 5: Wait for the finish of the scan process.

Method 2: Delete Random Numbered and Lettered Files Manually

If you don’t need random numbered and lettered files, you can remove them by yourself. To do that, highlight all these files and press Shift + Del keys. In the pop-up window, click Yes to confirm the operation. Then check if C drive random name folders/files are removed. If not, restart your computer or try other methods in the post to delete these files.

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Method 3: Run Disk Cleanup

You can also run Disk Cleanup to remove files with random numbers and letters in C drive.

Step 1: Press the Windows and S keys to open the search box.

Step 2: Type disk cleanup in the search box and click on this utility from the listed search results.

Step 3: In the elevated window, choose the drive to clean up and click OK. C drive is selected by default, so you just need to confirm the setting.

choose the drive to clean up

Step 4: Choose Clean up system files to continue.

click Clean up system files

Step 5: In the pop-up window, choose the C drive and click OK again.

Step 6: Tick the boxes in front of the file types to delete and click the OK button to save changes. In the prompted warning window, click Delete files to confirm the operation.

delete files

Step 7: Once the cleanup process ends, restart the PC.

Method 4: Run MiniTool Partition Wizard

When Disk Cleanup is stuck on errors, try using MiniTool Partition Wizard to delete C drive random name folders/files. As a disk space analyzer, this software enables you to find what’s taking up space on your hard drive and then delete space-consuming files/folders to free up disk space.

You may encounter Disk Cleanup stuck on calculating mixed reality, Disk Cleanup won’t open/work, Windows 11 Disk Cleanup not working, Disk Cleanup stuck on Windows Update Cleanup, and other errors while using this utility.

Step 1: Click the button below to download MiniTool Partition Wizard. Then run the setup file and follow the on-screen instructions to complete the installation.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

Step 2: Launch the software to enter its main interface and then click Space Analyzer.

tap Space Analyzer

Step 3: As C drive is selected by default, you just need to click the Scan button to begin the scanning process.

scan the C drive

Step 4: After the scan process ends, the result will be displayed. You can see the result in Tree View, File View, or Folder View.

Step 5: Find out the target file, right-click on it, and choose Delete (to Recycle Bin) or Delete (Permanently).

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