Numerous Windows 11/10 users have discovered that the System32 folder occupies excessive storage space. What are the underlying causes of this issue? And how can it be resolved? This guide will provide explanations and solutions for this problem.

The C:\Windows\System32 directory is a crucial component of the Windows operating system. It houses essential system files necessary for Windows to operate correctly. However, some users have noted that the primary subdirectories within the System32 folder consume considerable space, including DriverStore, FileRepository, Config, drivers, winevt, catroot2, Log Files, among others.

Lately, I noticed my 75 GB C drive was running low on space and showing red alerts. I scoured the internet looking for ways to address this, but found no solution. My last resort is here... If the System 32 folder alone consumes 37 GB of space, what other options do I have left? Particularly concerning the System32/Config folder. Is there any method to eliminate it? Is it truly essential for Windows functionality...

This article outlines steps to resolve the "System32 folder takes up too much space" issue.

Reasons Behind the System32 Folder Taking Up Excessive Space

The reasons contributing to the "System32 folder takes up too much space in Windows 11" issue are outlined below.

1. Accumulation of system and application files

Over time, as you utilize your PC, Windows accumulates various system and application files. Some of these may or may not be utilized, leading to increased space usage by the System32 folder.

2. Installation and removal of programs

When installing or uninstalling applications, Windows retains various data related to the software, expanding the size of the configuration folder. Consequently, the overall size of the System32 folder grows.

3. Creation and storage of backup files

Generating storage or backup files, including registry backups, also contributes to the expansion of System32 files, as these are stored in the System32/Config folder.

Solutions to Address the System32 Folder's Excessive Space Usage

Solution 1: Clean Up System Files

To tackle the "System32 folder size is excessively large" issue, you can remove all unnecessary files from the System32 folder. A recommended tool for this purpose is MiniTool System Booster. It aids in freeing up disk space by eliminating over 50 types of hidden junk files and tidying up superfluous clutter associated with the Internet, Windows, Registry, programs, etc.

Additionally, it automatically enhances CPU, RAM, and hard drive resources when launching demanding applications, ensuring smoother performance during gaming, video editing, streaming, and downloads. Furthermore, it allows disabling potentially unwanted startup programs that slow down your PC by initiating and running without your consent.

Now, download and install the MiniTool System Booster Trial Edition to enjoy its features free for 15 days.

1. Launch MiniTool System Booster on your computer.

2. On the Performance page, select the drop-down menu to choose Deepclean. Then, click the START CLEAN button to initiate the cleanup process.

3. The system will begin scanning and executing the cleanup tasks. Among these, Windows Cleanup can assist in clearing Windows junk and personal data, such as temporary files, log files, clipboard items, Recycle Bin, and more. You can select Select all and click CLEAN SELECTED.

Solution 2: Disable System Protection

Disabling system protection on Windows can also alleviate the "System32 folder takes up too much space" issue. Follow the steps provided below.

1. Type System Protection in the Search box and open it.

2. Navigate to the System Protection tab. Choose the disk where you wish to disable system restore and click Configure….

3. Select the Disable system protection option and click OK.

Tip: You can also click the Delete button next to Delete all restore points for this device to reclaim available space.

Solution 3: Disable the MSI NBFoundation Service and Delete the OmApSvcBroker.exe File

Several users have reported large quantities of OmApSvcBroker.exe files in the C:\Windows\System32 directory, causing the issue. Disabling the MSI NBFoundation Service and removing the OmApSvcBroker.exe file can help resolve the "System32 folder size is too large" problem.

1. Enter Services in the Search box to open it.

2. Locate the MSI NBFoundation service and right-click it to select Stop.

3. Double-click to open the Properties window, change the Startup type to Disabled, and click OK.

4. Press the Windows E keys simultaneously to open File Explorer.

5. Navigate to the following folder:

   C:\Program Files (x86)\MSI\MSI NBFoundation Service

6. Select the OmApSvcBroker.exe files and delete them. Afterward, restart your PC to verify if the "System32 folder takes up too much space" issue has been resolved.

Solution 4: Perform a Virus Scan

If your PC is infected by viruses or malware, you might face the "System32 folder takes up too much space" issue. Therefore, it is advisable to conduct a virus scan and eliminate any detected threats.

1. Press the Windows I keys together to open Settings.

2. Go to Privacy & security > Windows Security > Open Windows Security.

3. Navigate to the Virus & threat protection tab and click the Quick scan option.

4. Upon identifying any suspicious malware, remove them instantly and restart your PC to confirm whether the "System32 folder takes up too much space" issue has been resolved.

Final Thoughts

This post provides guidance on addressing the "System32 folder takes up too much space" issue. You can refer to these methods, and hopefully, this information proves beneficial to you.

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