[Explained] Windows Server 2012/2016/2008 C Drive Keeps Filling Up? How to Fix It

Your C drive is filling up rapidly at 2-3 GB per day, with the Windows folder being the only one showing significant growth. Meanwhile, the pagefile.sys is 9.5 GB, which might be contributing to the issue. It's unclear why the C drive is filling up so quickly, but it's likely related to system or user activity, possibly due to the database on the E drive. Consider investigating system logs, user activity, and disk usage patterns to identify the cause.

Some users have reported that their C drive is filling up unexpectedly, affecting PC boot speed and software loading. This issue can be resolved by identifying the cause and implementing solutions.

Options to Fix Windows Server C Drive Filling Up - 4 Methods

Why Does My Windows Server Drive Keep Filling Up?

No files add-The C drive on a Windows Server is often full due to various reasons such as System Restore Points, temp files, and hidden files. To check how much space is being taken up, you can follow certain steps. Once you've identified the issue, you can proceed to the methods section to learn how to clean up the C drive.

How to See Disk Usage in Windows Server:

• Log in to Server Computer as the Administrator user.
• To access the Disk Management tool, go to the upper right side of your screen and select "Tools" from the dropdown menu, then choose "Computer Management" from the list of options. From the Computer Management window, click on "Storage" in the left-hand menu, followed by "Disk Management" in the right-hand menu.

4 Options to Fix Windows Server C Drive Filling Up

The previous part discussed the reasons behind the C drive full issue. To address this, we'll explore some effective ways to clean up C drive space. While some users may think "Use Disk Cleanup again; delete temp files comes," there's another solution that can help. Let's dive in and find a more comprehensive solution to this problem.

1. Clean Up System Disk By Qiling Disk Master

A cluttered computer can slow down its performance, but a reliable drive cleaner can help free up space with ease. Qiling Disk Master, for instance, features a "System Cleanup" tool that regularly removes junk files, such as system files, browser caches, and app junk files, leaving your computer running like new.

Start to get more space, download Qiling Disk Master:

An in-depth tutorial on the cleaning C drive:

Step 1. Open Qiling Disk Master on your computer, then click on "System Cleanup" and finally click the "Scan" button to proceed.

Step 2. When the scan is finished, the program will list all the junk files it has found. Select the files you want to delete, but be careful not to accidentally delete important files that are necessary for your computer or software to function normally.

Step 3. To free up disk space, click the "Clean up" button and confirm the cleanup operation. This can be done regularly to keep your disk space organized.

2. Clean Up C Disk Space By Disk Cleanup

Accumulating junk files, unnecessary files 

Step 1. Click on This PC, right-click on the C drive, and choose Properties from the menu. 

To see the "Disk Cleanup" on the window, select it.

Step 2. Choose to clean temp files and Recycle Bin. Click OK.

Windows has a feature to automatically remove temporary files and data from the Recycle Bin, freeing up disk space.

Step 1.To view your storage settings, go to Settings and then select Storage. From there, you can click on View Storage Sense under Storage Management to see your storage usage and get recommendations for freeing up space.

Step 2. Turn on the Storage Sense button.

Step 3. Configure cleanup schedules. 

3. Move Big Programs from C Drive to Other Drive

If Disk Cleanup isn't helping, you can try using Qiling Disk Master's "App Migration" feature to move installed programs to a different location, potentially freeing up disk space. If you're still running out of space after deleting unnecessary files, consider whether software installations are taking up too much space. Qiling Disk Master allows you to migrate up to two programs, but if you need to move more, you may need to upgrade the software for additional features.

• Free Download
• Windows 11/10/8/7, 100% Secure

How to Move Files from C Drive to Other Drive:

Step 1. Run Qiling Disk Master on your PC

Go to the "Backup and recovery" section and click "File sync" to proceed.

Step 2. Select programs to move from C drive to another drive

1. Select the C drive and choose the programs you want to transfer, marking them as "Yes".

2. To select another drive on your computer as the destination, click the triangle icon and choose the desired drive. Then, click "Proceed" to initiate the process.

Step 3. Finish the transferring

 Wait patiently until the transferring process finishes and click "OK" to confirm.

When the cloning process is complete, you can restart your PC if needed. This will preserve all changes on your PC, allowing you to run programs from the cloned hard drive without reinstalling them.

4. Expand C Drive Space

The C drive keeps filling up for no reason even after cleaning Temp files and removing extra large files. The possible cause is the limited C drive size, which also affects the server computer's hibernation paging. To resolve this, you can consider increasing the C drive space using a third-party software like Qiling Partition Master, which can help manage drive space for better performance quickly.

Concluding Thoughts

Windows Server 2012/2016/2008 C drive filling up can be caused by various situations. To address this issue, we've identified both manual methods and two third-party tools. Qiling Disk Master is a useful disk cleaner that not only cleans up C drive space but also features file transfer functionality between two PCs.

If you're unable to resolve your issue using the provided methods, you can reach out to Qiling through their online chat feature. They offer 24/7 support to assist with any concerns or problems you may have.

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