C: drive filling up - SBS 2011 Essentials ?

We installed SBS 2011 Essentials a few months ago, with a C: drive of 60GB. At installation, it was about 20GB used, 40GB free.  We've just started reveiving disk space warnings, and the drive is now 56GB full, only 4GB free !   I've tried to do searches for large files, log files, etc. but nothing is sticking out as a main cause for this drive filling up.

First question: is there a likely place I should look to find out what is filling up the C: drive ?

Second, is there some utility I can run to summarize the sizes of all the folders to see if there is a "smoking gun" ?
adladladlAsked:
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Tony GiangrecoConnect With a Mentor Commented:
Has your situation cleared up? Question answered?
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Tony GiangrecoConnect With a Mentor Commented:
A great free utility we use is Treesize. It works great
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Tony GiangrecoConnect With a Mentor Commented:
You may also check your C drive for shadowcopies. We activated it on one server with a small partition and it took too much space and we had the same problem. We immediately reduced the amount of space it could used and the prolem went away.

Go to Windows Explorer, click Propeties of the C drive, select ShadowCopies
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jmdl1983Commented:
I would recommend looking at the \Windows\winsxs folder as the folder consistently grows until it reaches a large size.  Unfortunately there is no safe way to "prune" the folder.  As well, make sure you disable hibernation as it requires a file in the root of your hard drive atleast as large as your RAM size.  To achieve this open a command prompt and run "powercfg -h off"
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Pete LongTechnical ConsultantCommented:
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Tony GiangrecoConnect With a Mentor Commented:
CCleaner is also a great utility to clean out unanted files that Windows misses.
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adladladlAuthor Commented:
Turned off shadow copies and it only freed up about 2GB.  Tried the "powercfg -h off", but even though I'm logged in as administrator, it returns "You do not have permission to enable or disable the Hibernate feature". The Windows\winsxs folder is about 8.9GB -- but you say there is no way to clean this out ?
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adladladlAuthor Commented:
Okay -- Treesize found a 12GB sqla0000.tmp in Windows\temp ... guess that's the main culpret.
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Tony GiangrecoCommented:
Quickbooks?
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adladladlAuthor Commented:
no, not Quickbooks...  Symantec Endpoint Protection created the sql temp file.
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Tony GiangrecoCommented:
I beleive it.  treesize is a great tool to find things like this quickly.
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jmdl1983Commented:
You have to right click command prompt from start menu and choose run as administrator. And there is no safe way to clean the winsxs folder
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Tony GiangrecoCommented:
Have you free'd up that space? Everything ok?
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adladladlAuthor Commented:
Got rid of the sql temp file ... much better for now.  I'll need to spend more time on it later.
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Tony GiangrecoCommented:
Glad I could help.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
I don't use TreeSize - I prefer WinDirStat - however, BOTH programs suffer from a permissions issue, especially when run on 2008 and later.  One way to PARTIALLY get around this is to run WinDirStat on the UNC path for the drive and not the drive itself using the administrative shares.  Install it, run it against \\servername\c$ instead of C: - this can show a more complete usage of the drive.  It also shows you "colored boxes" that can help you identify files quickly AND can help you identify types of files so you can see if logs might be your problem.
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