C drive full issue is a tough problem for both Windows and Windows Server users.
We have shown some feasible methods for Windows users to resolve theC drive full without reasonissue.
In this post fromMiniTool, Windows Server users can find ways to troubleshoot Windows Server C drive full.

So, what should you do if you are faced with the Windows Server C drive full issue?
The following methods may be useful for you.
you’ve got the option to check for that and remove the unwanted programs.

Step 1: TypeControl PanelinSearchand open it.
Step 2: ClickUninstall a programunderProgramsand choose the unwanted program to clickUninstallone by one.
Step 1: TypeCommand Promptin Search and choose to run as an administrator.

Step 2: Copy and paste this command and pressEnterto execute it.
Step 1: Open theRundialog box by pressingWin + R, typediskmgmt.msc, and pressEnter.
Step 2: Right-press the system partition and clickExtend Volume….

Step 3: Then clickNextand jot down the amount of the space you want to add.
Want to know more methods to extend the system partition?
you might read this post:How to Make Windows System Partition Bigger?

Step 1: SearchDisk Cleanupin Search and open it.
Step 2: ClickClean up system filesand check the unwanted files to delete.
Then clickOKto start the deletion.

Here Is the Answer.
you might scan your system for potential dangers and then remove them for better security.
The following steps are available for the users of Windows Server 2016.

The users of other editions can take it for reference.
Step 1: OpenSettingsby pressingWin + Iand clickUpdate & Security.
Step 2: In theWindows Defendertab, clickOpen Windows Defender.
Step 3: Check theFulloption and clickScan now.
MiniTool ShadowMaker, one of thebest backup software, can be used to perform data backup and disk cloning.
you could upgrade your drive bymoving Windows to another drive.
More than that,system backupand partition & disk backup are available.
Now, lets check how to perform a drive upgrade via the Clone Disk feature.
Step 1: When you get into the interface, go to theToolstab and clickClone Disk.
Step 2: Choose your system drive as a clone source and clickOptionsto configure the tweaks.
Step 3: ClickNextto choose your destination drive and then clickStartto initiate the backup.
A Detailed Guide Is Here for You.
Bottom Line
How to fix the Windows Server C drive full issue?
In this article, we have listed seven methods and you might follow them for troubleshooting.
The steps are easy to follow and they wont take too much time.