7 Easy Ways to Perform Windows Server C Drive Cleanup

What happens when the C drive is full on the Server?

A full C drive on a Windows Server 2016 or 2019 can cause system crashes, slow performance, and increased risk of data corruption. This is because the C drive typically contains the operating system and essential system files, and when it runs out of space, the system can become unstable and unable to function properly. The lack of available space can also prevent the system from installing updates, which can further exacerbate the issue.

①Decreased System Performance
The C drive, where Windows Server stores temporary files and system data, can become full, causing system performance to significantly decrease, leading to a slow and unresponsive server.
②System Instability and Crashes
A full C drive can cause system instability and crashes due to the operating system's inability to write essential system files or create temporary files, leading to errors, freezes, and crashes that can disrupt critical services and impact server stability.
③Limited Functionality
When the C drive is full, some system functions may not work properly or become unavailable, including Windows updates and software installations, which require free space to complete, potentially preventing system updates and software installations.
④Data Loss and File Corruption
When the C drive is almost full, it increases the risk of data loss and file corruption due to incomplete or corrupted files, and system crashes that can lead to data loss if files were being processed or modified at the time of the crash.

To address the issues of disk space usage on the C drive, it is crucial to regularly monitor the disk space and take proactive steps to perform a Windows Server C drive cleanup, ensuring the system remains efficient and stable.

How do I clean up my C drive on Windows Server

How to free space in C drive? Here are 7 ways to tell you the answers.

#1. Turn off hibernation
#2. Run Disk Cleanup
#3. Delete temporary and downloaded files
#4. Delete internet temporary files
#5. Empty the Recycle Bin
#6. Uninstall unnecessary Apps
#7. Turn on the storage sense
Further reading: Can I have a larger C drive space?

#1. Turn off hibernation

Hibernate mode is enabled by default in Windows Server and doesn't affect performance, so there's no need to disable it unless you don't use it.

To disable hibernation, you can follow these steps: Go to Control Panel > Power Options > Choose what the power buttons do. Then, uncheck the box next to "Turn on hibernation" and click "Save changes". This will disable hibernation and free up the disk space occupied by the hiberfil.sys file. Alternatively, you can also disable hibernation from the Command Prompt by running the command "powercfg /h off".

Step 1. Press Windows + R key and then type cmd in the Run box. And click OK to open the CMD.

Step 2. Type powercfg.exe /hibernate off command in the CMD window and hit the Enter key.

You can use the command "powercfg -h off" in the command prompt to turn off hibernation and free up space on your C drive. This will disable hibernation and clean up any temporary files, freeing up space on your C drive.

#2. Run Disk Cleanup

To reclaim disk space and optimize your Windows Server C drive, you can utilize the Disk Cleanup tool, which helps remove unnecessary files and free up valuable disk space.

✍Note: To clean up unnecessary files, ensure you only delete files that are not essential to the server's functionality. This will prevent any potential issues or data loss.

Step 1. Open File Explorer and locate at C drive. Then right-click the C drive to open Properties.

Step 2. Under the General tab, locate and then choose Disk Cleanup.

Step 3. In the Disk Cleanup window, select the box next to the item you want to delete, and then click OK to confirm.

#3. Delete temporary and downloaded files

Temporary files can be deleted without running Disk Cleanup by removing files from the C:\Windows\Temp or C:\Documents and Settings\username\Local Settings\Temp folders.

#4. Delete internet temporary files

To delete Internet temporary files, you can follow these steps: simply navigate to the "Temporary Files" folder, which is usually located in the "C:\Users\[YourUsername]\AppData\Local\Temp" directory, and delete the files you want to remove. Alternatively, you can use the built-in Disk Cleanup tool, which can be accessed by searching for "Disk Cleanup" in the Start menu, to automatically delete temporary files and other unnecessary items on your computer.

Step 1. Open Internet Explorer (IE), click Tool and select Internet Options.

Step 2. In the Internet Options window, click Delete, and in the Delete Browsing History window, choose to delete temporary files, history, and cookies, etc.

#5. Empty the Recycle Bin

When you delete files from your PC, they are not immediately removed from your hard drive. Instead, they are moved to the Recycle Bin, where they continue to occupy valuable storage space. To free up space on your C: drive, it is important to regularly empty the Recycle Bin.

There is how you can do it:

Step 1. Locate at the Recycle Bin icon on your desktop.

Step 2. Right-click on the Recycle Bin icon.

Step 3. From the context menu, select Empty Recycle Bin.

Step 4. Click on Yes when a warning message appears.

It's essential to double-check the contents of the Recycle Bin before emptying it, as deleted files cannot be recovered using standard methods once they're emptied. This means that important files should not be mistakenly deleted, and users should take care to ensure they're not discarding valuable data.

#6. Uninstall unnecessary Apps

You can uninstall unused applications on your C drive to free up storage space and improve server performance. To do this, go to the Control Panel, click on "Programs and Features" (in Windows 10), or "Add or Remove Programs" (in older Windows versions), and select the applications you want to uninstall. Then, click "Uninstall" to remove them from your server. This process will help declutter your C drive and potentially improve your server's performance.

Step 1. In the search bar, search and open Control Panel.

Step 2. In the Control Panel window, select Uninstall a program under the Programs section.

Step 3. Then you just need to decide the needless applications and uninstall them one by one.

#7. Turn on the storage sense

Storage Sense in Windows Server helps manage system storage automatically by removing unnecessary files and data, freeing up space and keeping your system organized.

Step 1. Open Settings and locate at Storage section of the System menu.

Step 2. Toggle the Storage Sense slider. And then you just need to configure the storage sense settings.

Conclusion

You can successfully clean up your Windows Server C drive using the above 7 methods, which will save storage space on the C drive. However, if you need a larger storage location, you'll need to upgrade your C drive. A professional system cloning software like Qiling Disk Master Server, which is also a top-rated external hard drive cloning software, can help you clone your C drive to a bigger disk.

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