Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm tinkering with a Server 2008 R2 server that has a 16 GB C: drive. After running Windows update, I only have 340 MB of free space left. C:\Windows\Assembly is taking up 8 GB and C:\Windows\Installer is takiing up 2 GB.

What is the best way to make more room on my C: drive?

share|improve this question
What a question? Make C: bigger! Use Gparted for it. – mailq Sep 19 '11 at 20:31
Expand the volume?!? Seriously there are not a lot of file you can delete under \Windows. But I'd suggest running WinDirstat top find any big files to see if there are any to delete. – uSlackr Sep 19 '11 at 20:32
No need to use GParted to expand the volume. Windows server 2008 can do this natively if there is room to expand into – uSlackr Sep 19 '11 at 20:33
The minimum disk space requirement is 32GB. What do you expect, seriously? – Ben Pilbrow Sep 19 '11 at 20:34
@mailq: you can extend the system/boot volume in W2K8 (under the correct circumstances), I've done it many times.… – joeqwerty Sep 19 '11 at 21:09
up vote 2 down vote accepted

Honestly? 16 GB for C: on Server 2008 R2 is woefully insufficient, as you've already noticed. Extend it with something or, since you're just tinkering with this server, buy a bigger disk and put it in. MS recommends at least 40 GB.

share|improve this answer

(ah, missed the part about only allocating 16GB to the C: partition to begin with. that'll cause problems. my response is for more general space issues not related to what amounts to a misconfiguration.)

The first thing to do is to step back and decide whether or not this makes sense. Do you likely have a full drive's worth of actual data + applications or is something, somewhere going unchecked and causing issues for you.

If you feel that it does makes sense, then there's not a whole lot you can do besides move some of that data off of the drive. Sure, you can compress some folders and their contents and that might gain you a bit, but it's not going to solve the problem in the long run.

If you don't think that you should have a full hard drive at this point, you'll need to do some more research. Among other possibilities, there might be some extremely verbose logging that is causing the space issues.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.