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Why Do I Have A Lot Of Files In My Windows Folder Highlighted In Blue


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#1 chris3

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Posted 19 November 2007 - 05:03 PM

alrite, Why do i have a lot of files in my Windows folder highlighted in blue? Can u help me please

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#2 buddy215

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Posted 19 November 2007 - 05:30 PM

Blue file names indicate files that haven't been accessed in a while, and were compressed by the Disk Cleanup utility.

Green indicates encrypted files.
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#3 chris3

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Posted 19 November 2007 - 05:39 PM

oh i see thanks for that

#4 quietman7

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Posted 19 November 2007 - 09:59 PM

Do most of the folder names look similar to this?

C:\WINDOWS\$NtUninstallKB282010$
C:\WINDOWS\$NtServicePackUninstallIDNMitigationAPIs$
C:\WINDOWS\$NtServicePackUninstallIDNMitigationAPIs$
C:\WINDOWS\$NtServicePackUninstallNLSDownlevelMapping$
C:\WINDOWS\$NtUninstallMSCompPackV1$
C:\WINDOWS\$NtUninstallWMFDist11$
C:\WINDOWS\$NtUninstallwmp11$
C:\WINDOWS\$NtUninstallWudf01000$

$NTUninstall folders are created when you install a Microsoft Service Pack, a Hotfix, or security update. When using Windows Update, Windows creates binary folders named "$NtUninstallKBxxxxxx$" which are highlighted in blue due to compression and hidden by default in the C:\Windows folder or C:\Winnt folder.

By design, Win XP compresses files that do not get used frequently and displays those files in blue. If you wish to change this, open Windows Explorer, click Tools > Folder Options > View > Advanced settings: Show encrypted or compressed NTFS files in color. Or you could right-click the file/folder, select Properties > Advanced button and uncheck "Compress contents to save disk space".

These folders contain the files necessary to uninstall a Microsoft Windows update that has been installed on your computer. You will not see them unless you have Windows reconfigured to show hidden files/folders. If you delete these folders, you loose the ability to uninstall those updates.
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#5 bigbrew

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Posted 18 October 2008 - 02:16 PM

So, if a Windows XP system has been running for a while with no problems, is it safe to remove the $NtUninstall folders in the C:\WINDOWS folder? The reason I'm asking is that these folders are taking up 919 MB, almost 1 GB of disk space.

(Edit: Sorry, this topic should really be in the http://www.bleepingcomputer.com/forums/f/56/windows-xp-home-and-professional/ forum. Can a mod move this to the appropriate spot?)

Edited by bigbrew, 18 October 2008 - 02:19 PM.


#6 quietman7

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Posted 18 October 2008 - 02:40 PM

How can I save space after installing a Service Pack or other updates?
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