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Something is absorbing disk space on 2 Windows 7 Pro POS machines

Posted on 2014-11-01
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Last Modified: 2015-03-18
I have two machines - different locations and networks that overnight went to 0 free space on the drives.
These are POS registers, not used for any other purpose and have 80GB drives.  Both run SQL Express 2008 and both are in locations that have other POS terminals that are not affected - running Viper on one now.  Has anyone seen this before?

Had to detach SQL DB and move them to a network drive to get enough room to install AV
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Question by:Michael Roberts
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by:John Hurst
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Start by looking in the temp folder (c:\users\name\appdata\local\temp) and see if folders (files) are building up there. If so, what are they?

Run Disk Cleanup and allow to complete. Does this reclaim space?
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by:Michael Roberts
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The primary user - a PCI secured lock down - has 163MB in the temp folder - had run the disk cleanup previously and recovered 60MB.
These machines run about 25-30% of disk space normally.. good place to look thought had not thought of it!
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by:John Hurst
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Also make sure that Windows (or your PC vendor) is not running back up software that is making regular backups. This chews up disk space as well.

Check one or both machines for malware that may be creating temp files.
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by:Michael Roberts
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no backup software running - can't find any Gigantic >128Mb files searched for large and didn't find any...
Does Windows Search look at hidden files?  Because it didn't find anything that shouldn't be there or was huge
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John Hurst earned 500 total points
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Get a trial copy of TreeSize Professional (Jam Software) and turn that. I use TreeSize and it can show large files / folders at a glance. You need Pro and you need to run it as admin to see the hidden files, but is very useful for finding what is using up space.
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