C drive is full

Windows Server 2008 C drive full solution

It is very common that the server system C: drive is getting full, this article introduces how to fix C drive full issue on Windows Server 2008 (R2) fast and easily.

C drive is full

Why C drive is getting full automatically?

Many Windows 2008 servers keep running several years, the hard disk is very small when installing the Operating System. Many server administrators have replaced the small disk with larger one or hardware RAID arrays. However, many people still feedback that the system C: drive is getting full.

As we know, many types of files are saving into C drive continuously, for example: Windows Updates, applications, temporary files, logs, cache, etc. If C drive is not big enough or you do not remove junk files, of course C drive becomes full sooner or later.

Unlike Windows Server 2012 and 2016, Server 2008 doesn’t change C drive to be red in File Explorer when it is running low on space. C drive maybe almost full when you find something abnormal. It is very dangerous in this situation, because system is very likely stuck or reboot unexpectedly, the worst – system crash. You’d better fix C drive full for Server 2008 as fast as possible.

How to fix C drive full issue?

When system C: drive is full in Windows Server 2008, you need 2 steps: free up disk space with Windows Disk Cleanup and enlarge C drive with partition software.

Server 2008 Disk Cleanup utility can help you delete unnecessary and junk files to reuse disk space. It is able to remove most common types of unnecessary files fast and easily. However in most cases, you cannot reclaim large amount of space, so C drive maybe full again in a short time.

The aim to free up disk space include:

  1. Prevent server from stuck or crash.
  2. Get some free space to install disk partition software.
  3. Remove new generated junk files monthly.

Step 1 Free up disk space

To free up space on Windows Server 2008, I always suggest the native Disk Cleanup utility, because it is safe. Don’t put the server into danger for additional 1 GB space by using 3rd party optimization tools.

Tip Disk Cleanup is not installed on Server 2008 R2, learn how to install and run Disk Cleanup to free up disk space.

Step 2 Expand C drive

To completely fix C drive full issue in Server 2008 (R2), you need to expand C drive to larger size. With partition software such as NIUBI Partition Editor, you can transfer free space in any other partitions in the same disk into C drive. You just need to drag and drop on the program and everything keeps intact without doing any other operations.

Download NIUBI Partition Editor and follow the steps in the video:

In Summary

When system C drive is getting full in Windows Server 2008 (R2), try to fix this issue as fast as possible, otherwise you’ll suffer from server performance down, system stuck or crash.

To solve this problem, run Windows Disk Cleanup to get some free space, so server could keep running in the right way and you can install program. The most important step is expanding C drive as large as possible. Finally, remove new generated junk files with Disk Cleanup monthly.

Besides shrinking and extending partition, NIUBI Partition Editor can help you do many other disk partition management operations.


Solution of Windows Server 2008 C drive getting full.
4.8 (95%) 4 vote[s]