Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

# Windows 7: Undo NTFS compression

 21 Nov 2015 #11 torchwood W7 home premium 32bit/W7HP 64bit/w10 tp insider ring 3,553 posts properties Have you changed the default option here, according to your screenshot drive should be H. Roy Attached Thumbnails My System Specs
 .
 22 Nov 2015 #12 mp5 Windows 7 Home Premium 64bit 12 posts Oslo, Norway 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 My System Specs
 22 Nov 2015 #13 torchwood W7 home premium 32bit/W7HP 64bit/w10 tp insider ring 3,553 posts whats here What settings here, Roy Attached Thumbnails My System Specs
 .
 22 Nov 2015 #14 Ztruker Windows 10 Pro X64 6,283 posts Space Coast of Florida 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 Specs
 24 Nov 2015 #15 mp5 Windows 7 Home Premium 64bit 12 posts Oslo, Norway Quote: Originally Posted by torchwood What settings here, Roy I have the very same settings! Attached Images My System Specs
 24 Nov 2015 #16 Layback Bear Windows 7 Pro. 64/SP-1 24,907 posts Northern Ohio 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 Specs
 24 Nov 2015 #17 mp5 Windows 7 Home Premium 64bit 12 posts Oslo, Norway Quote: Originally Posted by Ztruker 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 My System Specs
 24 Nov 2015 #18 mp5 Windows 7 Home Premium 64bit 12 posts Oslo, Norway Quote: Originally Posted by Layback Bear 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 Specs
 25 Nov 2015 #19 Pyprohly Windows 10, Windows 8.1 Pro, Windows 7 Professional, OS X El Capitan 695 posts Sydney, NSW 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() My System Specs

## Undo NTFS compression

 Similar help and support threads Thread Forum Move an XP file in NTFS to Win7 NTFS is very slowed down on computerI am setting up a Win7 install using a 'scratch disk which formatted and has the operating system. My media files are on older XP machine. The file transfer should be speedy on the same computer but it is very slow. Is there an instruction needed to 'pass through' more efficiently? ... General Discussion Suspicious 'Undo Rename' and delayed 'Undo Delete'Hey, There are two things which have been bugging me off for some time now: a suspicious 'Undo Rename' in the right-click context menu even if I did not rename anything, and a delayed 'Undo Delete' in the right-click context (I deleted a shortcut from the desktop and it took some time for the... General Discussion Disabling ntfs compression/win 7 hpI am interested in whether or not disabling NTFS compression In Win 7 Home Premium would noticeably improve disk data transfer rate and or wear on hard drive. My WEI is 5.9:sarc: Performance & Maintenance Isit a good idea to use NTFS compressioni wonder what are the advantages and disadvantage of using NTFS compression. i wonder does it slow things down alot? Performance & Maintenance Apply NTFS compression on vmdk disk?Is it wise to apply NTFS compression on vmdk disk and the other vm files to save space? I'm running WMware workstation 7 on Windows 7 Virtualization

 Our Sites Site Links About Us Find Us Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp. © Designer Media Ltd All times are GMT -5. The time now is 07:50.