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Windows 7: Undo NTFS compression

21 Nov 2015   #11
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 
properties

Have you changed the default option here, according to your screenshot drive should be H.

Roy




Attached Thumbnails
Undo NTFS compression-ntfs.png  
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22 Nov 2015   #12
mp5

Windows 7 Home Premium 64bit
 
 

Thank you Roy, for taking time helping out with my problem!

Yes, I have tried changing attributes for drive H, in addition to the single file on the drive.
Compression for H can be set ON/OFF without getting Windows error message.
(Tried both options: Only H, and H incl. folders/ files)
However, the box is always unchecked when I go back to see properties status.

Properties for the .flkb file on drive H remains stuck with a checked box, I get a Windows error message when trying to disable.

The paradox is that Windows never started the compression process in the first place, it only marked the file as if!


Attached Thumbnails
Undo NTFS compression-h.png  
My System SpecsSystem Spec
22 Nov 2015   #13
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 
whats here

What settings here,

Roy


Attached Thumbnails
Undo NTFS compression-attr.png  
My System SpecsSystem Spec
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22 Nov 2015   #14
Ztruker

Windows 10 Pro X64
 
 

I have this squirrelled away, maybe it will help:


Compression is sometimes turned on by disk cleanup, to prevent this from happening again delete this registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Explorer\VolumeCaches\Compress old files

You can export the key before deleting it, just in case you want it back. Disable compression from disk properties or use the following command:

compact /u /a /f /i /s:c:\

Change c:\ to the letter assigned to the drive you are working with.
My System SpecsSystem Spec
24 Nov 2015   #15
mp5

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by torchwood View Post
What settings here,

Roy
I have the very same settings!


Attached Images
Undo NTFS compression-snap0702689.png 
My System SpecsSystem Spec
24 Nov 2015   #16
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I'm surly no expert but is it possible that their isn't enough room on the drive to decompress it?
The picture only shows 2.1MB free space.
My System SpecsSystem Spec
24 Nov 2015   #17
mp5

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by Ztruker View Post
I have this squirrelled away, maybe it will help:


Compression is sometimes turned on by disk cleanup, to prevent this from happening again delete this registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Explorer\VolumeCaches\Compress old files

You can export the key before deleting it, just in case you want it back. Disable compression from disk properties or use the following command:

compact /u /a /f /i /s:c:\


Change c:\ to the letter assigned to the drive you are working with.
  • I was me that unfortunately tried to turn on compression! This is explained in my first post!
    But Windows aborted immediately with an error message; Not enough space!
    So main issue is Windows marked the file's properties with "compression ON" and now refuses to turn it off for the same reason; Not enough space!
  • I don't have that registry key! Don't know how or why it disappeared..
  • I ran your suggested command. It does not say OK for the Locker -file yet, but I guess the blinking cursor means it's working on it?
    It's been running for a two hours now.. Since the Locker -file is not really compressed physically, I would've thought it go rather quick!?


Attached Images
Undo NTFS compression-snap0702685.png Undo NTFS compression-snap0702690.png 
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24 Nov 2015   #18
mp5

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
I'm surly no expert but is it possible that their isn't enough room on the drive to decompress it?
The picture only shows 2.1MB free space.
It is NOT enough space for decompression, but thing is nothing has ever been compressed!
Please read my first post!

Thanks...
My System SpecsSystem Spec
25 Nov 2015   #19
Pyprohly

Windows 10, Windows 8.1 Pro, Windows 7 Professional, OS X El Capitan
 
 

There is an 'Uncompress' method of the CIM_Directory WMI object. It's worth a shot...

Enter these lines in a PowerShell shell.
Code:
$folder = (gwmi -q "SELECT * FROM CIM_Directory Where Name='C:\\folder\\to\\uncompress'")
$folder.Uncompress()
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