All Questions
Tagged with compression ntfs
64 questions
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NTFS compression & ghost disk space
I have a source NTFS compressed folder
S:\Source\
size 16 GB
size on disk 8 GB
And I have a target drive T:, NTFS just formatted, 4096 block size, with compression enabled and 20 GB free.
Now I run ...
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2
answers
112
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my drive shows size on disk very smaller than its actual size
I have check there is no compression check on ntfs settings but still also 1 TB file shows 60 GB on disk.
How is this possible ?
2
votes
1
answer
257
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How do you enable NTFS compression across all drives?
How do I enable NTFS compression for each of my drives?
Currently it is available on my C: NVMe, E: SATA SSD, and my K: HDD
but the drives I actually want to compress are not able.
K: drive able to be ...
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1
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0
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74
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NTFS Compression by file extension
Can I enable NTFS compression on a disk, based on file extension?
I mean, that I don't want these files compressed: *.hc, *.mkv, *.mp4, *.ogg, *.7z, *.zip, *.odt, *.docx, *.png, *.jpg but I want these ...
- 227
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0
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94
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Do new files added to an NTFS compressed directory use the same algorithm as existing files in the directory
I have used the command line tool "compact" to compress D:\SteamLibrary with the LZX algorithm, It has marked these directories as "compressed" in file attributes. Will new files ...
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1
answer
2k
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How does NTFS Compression impact performance on nvme SSDs in Windows 10 on 2021 hardware?
I set up a File History backup nvme ssd in my laptop and wanted to share the results of a quick CrystalDiskMark benchmark with NTFS File and Folder Compression enabled and disabled. See answer below.
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2
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1k
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Cannot enable NTFS compression on a 18TB HDD
When I had my 18TB drive filled I noticed I could not enable NTFS compression because the function was grayed out. I followed the directions here "Compress contents to save disk space" ...
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1
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1
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255
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Confusion about NTFS compression and `du` on ZFS (was: How to *really* disable NTFS compression?)
I am using ZFS with compression+dedup on my host system and use Qemu/KVM for virtualization. I wanted to let ZFS do it's job and disable Windows 10's NTFS compression feature (both, CompactOS and NTFS ...
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23
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2
answers
18k
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What exactly does NTFS compression do to files?
Until not so long ago, I've not even known that you could compress specific folders, files or even entire drives using windows' builtin compression. A simple way to do this is just go to properties ...
- 249
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0
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726
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How to best apply compression in Windows to speed up a slow disk with a powerful CPU?
I have a desktop PC with a reasonably powerful Ryzen 3700X (8c/16t) that runs Linux. I need to occasionally use Windows, but not often enough to justify dual-booting. I have instead installed Windows ...
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0
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134
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Check progress on NTFS compression
I have a NTFS disk with compression enabled and moved a couple of files (300gb~) to it.
Every time I refresh the windows explorer window I see that the free space on the disk is growing, which I ...
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5
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1
answer
767
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Does NTFS write files two times when compression is used?
I've read in this answer https://superuser.com/a/1358858/1506333 that NTFS does double writes, uncompressed data first, then compressed, is it true?
Motive Nº1: It will kill SSD much faster, since it ...
- 53
0
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1
answer
703
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New files not being compressed in a compressed folder in Windows 10 [closed]
After marking folder as compressed in Windows 10, new files are not being compressed.
Steps:
create a folder on your desktop and then right click -> properties -> advanced -> enable "...
- 103
0
votes
1
answer
156
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Drive recovery: zipped image is much smaller than original drive
I have a 1TB SSD that got corrupted. It was the main drive for a Windows machine, but wasn't used very heavily, so I doubt that it failed due to hardware problems. I made a compressed image of the ...
- 175
1
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0
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143
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NTFS Folder Compression Fades
I am on a Windows Server with limited disk capacity. I used windows build in compression of folders to compress a 30 Gbyte file to 22 GByte.
I noticed that while running a programm which frequently ...
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1
answer
1k
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"Windows Sandbox failed to start, virtual hard disk files must be uncompressed and unencrypted"
I have Windows 10 Pro and I successfully installed Windows Sandbox. However, when I try to run it, it shows the following error:
My (physical) hard drive is indeed compressed (NTFS compression) and ...
user1193029
3
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1
answer
856
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Disable NTFS Compression, but only for new files
I have an external NTFS drive which I enabled compression on a few days ago. I thought it would help save disk space, but only saved about 1% overall. Now disk writes seem much slower and the ...
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0
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1
answer
127
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What's happening when I create a file in a "NTFS compressed" directory?
What's exactly happening? The files appear in the UI as compressed. Is it?
If so, is it written twice (like, uncompressed version of the new files is stored, as a buffer, and compressed then (so ...
- 26
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votes
3
answers
3k
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Is there a disk image file format that only store sectors which are filled (non empty)?
I have a 500GB hard drive that contains several NTFS partitions.
I would like to create a single disk image of all partitions. My ultimate goal is to mount that drive later and scan it for possible ...
- 933
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4
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234
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Is it possible to transparently handle files within compressed archives
Is there any possibility (driver, software, filesystem addon) to enable windows to handle archives like ordinary folders? so that any program that uses file API can access to data within archives like ...
- 314
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0
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122
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Is it possible for a file system minifilter driver to interfere with NTFS compression?
On my work laptop I was running low on disk space and attempted to compress a folder using NTFS compression. The file properties dialog acted like it was compressing the folder but after it finished I ...
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3
answers
2k
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How do I see and set the NTFS compression attribute in Linux?
Browsing an NTFS partition in Konqueror or Dolphin, the compressed files and folders are not displayed with blue names, and there doesn't seem to be any page in the file properties dialog to see or ...
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2
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836
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Is it wise to use compressed NTFS Windows Vmware stored on a compressed NTFS drive?
I have a Windows 10 vmware box stored on a compressed NTFS drive.
So, my question is whether it's a good idea to use compressed NTFS on the "C:" drive of the Windows 10 vmware box (i.e. compressed ...
- 109
2
votes
2
answers
767
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Extracting (or copying) files to a compressed NTFS folder makes Windows report the disk is full when it's not
I've been trying to extract a series of compressed files - total ~50GiB (uncompressed) - to a hard disk with about 55GiB of free space.
Because this is a slow hard drive and with limited capacity, ...
- 1,617
0
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1
answer
503
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NTFS compression/decompression
I bought an ASUS E200H: Win 10 Home 64-bit; 32GB of SSD (the operating system occupies around 20GB, so only around 10GB is left for me).
After installing all the programs that I need, I had around ...
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3
votes
2
answers
2k
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Is it smart to use NTFS compression on a bitlocker encrypted disk?
My intuition says that this should serve no benefit. However I just clean installed windows 10 pro and all of my non-system files are compressed. I'm getting almost 50% compression on my ssd.
If ...
- 3,973
1
vote
1
answer
6k
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NVMe SSD and Windows NTFS compression - effects on performance?
I have a laptop with the following NVMe SSD drive:
NVMe KXG50ZNV512G NVM
as proven with Speccy Free (sorry for UHD)
I have a quite powerful CPU too:
Intel Core i7 7700HQ
My question is:
Since ...
- 4,225
1
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0
answers
50
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How should I proceed to get all files uncompressed? NTFS, Win8.1
I had a very small SSD for my Windows 8.1 Pro; that is the reason I activated NTFS compression.
I now have a large SSD and want to get rid of it for good.
Since I already have unticked on the system ...
- 4,225
1
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2
answers
1k
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Is an NTFS compressed drive really written compressed under Ubuntu?
I want to copy a very big NTFS compressed drive under Ubuntu since it copies faster than Windows. I formatted the new drive with mkfs under Ubuntu and after a while the target drive ran out of space. ...
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0
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1
answer
241
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NTFS Compression Apply changes to this folder only
please can anyone tell me what is the difference between Apply changes to this folder only or Apply changes to this folder, subfolders and files when using ntfs compression ?!
i tried the Apply ...
-1
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2
answers
981
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Is it possible to enable NTFS compression without formatting? [duplicate]
NTFS offers the option to compress files on the fly, but as far as I know you need to enable this functionality when you format the volume.
Is there a way to enable it on an already formatted NTFS ...
- 736
2
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1
answer
2k
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Windows 10 NTFS compression of copied files
I'm experiencing an odd issue in Windows 10 that involves copying files that are compressed using the NTFS filesystem to another folder that has the compression flag set (so that when the file is ...
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22
votes
5
answers
30k
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NTFS compression on SSD - ups and downs
This topic discusses NTFS compression on HDDs as a method of improving disk access performance, and concludes that it's poor at that more often than not. But I have always viewed compression as a way ...
- 1,336
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4
answers
3k
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How to compress entire drive C in Windows including locked files?
If I just set checkbox for compressing drive C in Windows Explorer, I will get numerous file sharing errors, because many files are opened when Windows is running.
Is it possible to compress drive in ...
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2
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4k
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Can I use CompactOS technology in Windows 7 or 8.1?
Can CompactOS in Windows 10 be used to compress win 7 or win 8.1 available on the same disk (dual boot mode)?
Similarly can I use this to compress other drives also?
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2
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1
answer
1k
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Which files and folders are compressed when using compact.exe /CompactOS
I am thinking of using NTFS compression (LZNT1) on my SSD using Windows 7, but I was a little unsure as to which folders would be a good candidate.
I was aware that Windows 10 has introduced new ...
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1
vote
1
answer
67
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Save-As from MS Office ignores 'compressed' setting
I have my complete data hard disk compressed (the Windows NTFS standard functionality), including root, all directories, and all files.
When I open an Excel or Word file, and use Save-As, the new ...
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1
answer
1k
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How to recover files from the compressed NTFS partition?
One of the NTFS partitions was compressed with the tool implemented in Windows 7, available in the partition properties window.
Later, one of the folders has disappeared. I was trying to use Piriform ...
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2
votes
1
answer
1k
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NTFS File Compression Issue
I have several hundred photo files that were inadvertently moved from a Windows NTFS formatted, compressed external drive, to a second external drive that was formatted by Mac OS X. The move was ...
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7
votes
1
answer
5k
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how to set automatic NTFS LZX compression on new files
I know it is possible to compress files on the commandline with LZX:
COMPACT /C /S:E:\Backup /EXE:LZX
But i would like to do that BEFORE the files gets written on the disk.
If i enable compression ...
- 1,306
3
votes
2
answers
2k
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NTFS compression ate all disk space with no possibility to recover
To increase available space on a HDD (Windows Server 2012 Standard x64), I tried to enable NTFS compression on that drive. While doing the compression, it ran out of available space (despite having ...
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1
vote
1
answer
289
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NTFS Compression on multiple folders
I have been tasked with compressing certain folders on a network drive. The drive is formatted NTFS on a Windows Server 2008 R2 machine. The folders to be backed up are all called "Backup", and are ...
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1
answer
4k
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Uncompressing files, compact'ed on Windows 10
I'm testing Windows 10 and one very interesting thing I found is new switches for compact:
Displays or alters the compression of files on NTFS partitions.
COMPACT [/C | /U] [/S[:dir]] [/A] [/I] [/F] ...
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2
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872
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What files can I safely enable NTFS compression for on Windows 7/8 USB bootable drive?
The title says it all. I am just a few MB short of copying the needed files to a USB flash drive I intend to use for installing Windows. I have marked the partition as active. I was wondering if I can ...
- 6,607
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1
answer
1k
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Disk space usage in large folders with over one million files
I have a NTFS-compressed folder containing one to two million small (~25KB) text files.
Recently, I noticed that far more space was being consumed than would be expected. Digging deeper revealed that ...
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1
answer
1k
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How to NTFS compress the system drive? [duplicate]
As you know, some files cannot be compressed when your system is running.
How do I enable compression system-wide then? For every single file?
Can I enable it in the recovery console?
Ps.: For ...
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2
answers
4k
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Merging many .rar files in one .rar file
I have about 200GB of rar part files (all .rar) that I would like to merge into 1 single .rar file. I'm trying to perform this in Windows. How would one go about merging many a rar file without ...
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5
answers
13k
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NTFS compressed folders: is it possible to tweak compression ratio?
As it seems, Windows compresses the NTFS compressed folders with the lowest compression ratio possible. While this maybe good for increasing speed and decreasing CPU load, for the files that are ...
- 519
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votes
2
answers
6k
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How to force all files in an NTFS compressed folder to automatically compress in Windows?
Is it possible to keep all the files within a NTFS-compressed folder compressed?
For example, if I have a compressed a folder using NTFS compression, it will compress all the files inside the folder ...
- 181
3
votes
3
answers
6k
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Disable Windows 8.1 Component Store (WinSxS/DriverStore) automatic compression?
Windows 8.1 has a new Scheduled Task (Servicing\StartComponentCleanup) which will automatically delete or compress superseded and unused files from the Side by Side store, DriverStore and drivers ...
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