Questions tagged [ntfs]

NTFS is the primary file system of all modern versions of Windows.

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82 votes
24 answers
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Storing a million images in the filesystem

I have a project that will generate a huge number of images. Around 1,000,000 for start. They are not large images so I will store them all on one machine at start. How do you recommended on ...
s.mihai's user avatar
  • 1,509
45 votes
5 answers
249k views

Overcoming maximum file path length restrictions in Windows

One of our customers habitually use very long path names (several nested folders, with long names) and we routinely encounter "user education issues" in order to shorten the path to less than 260 ...
Christopher Edwards's user avatar
38 votes
11 answers
178k views

How to take ownership of files from the command line?

Every so often I run into a file that I need to take ownership of. I normally use cacls for changing ntfs permissions, but it doesn't seem to do ownership. Under *nix I would run something like ...
Joe's user avatar
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37 votes
2 answers
25k views

fstab filesystem type for NTFS -- 'ntfs' or 'ntfs-3g'?

I have a question about the difference between 'ntfs' and 'ntfs-3g' in the filesystem type field in the /etc/fstab file. My Linux distribution is Xubuntu; I suppose the answer may well vary between ...
Joseph's user avatar
  • 473
33 votes
8 answers
48k views

How to workaround the NTFS Move/Copy design flaw?

As anyone that has dealt with file server permissions is aware, NTFS has an interesting design feature/flaw known as the Move/Copy problem. As explained in this MS KB article, the permissions for a ...
David Archer's user avatar
28 votes
7 answers
5k views

What's the maximum theoretical data transfer throughput of NTFS?

Recently I was at a local user group meeting where the presenter noted that the maximum throughput of the NTFS IO stack was 1 GBps. He substantiated his claim by simultaneously copying two large files ...
swasheck's user avatar
  • 713
22 votes
3 answers
29k views

Window 256 characters path name limitation

after a long research, I finally found out that pathnames cannot be longer than 256 characters even in the latest Microsoft Windows 7. I really don't get it why there is such a stupid limitation, ...
user avatar
21 votes
8 answers
77k views

How do I take ownership of a folder when access is denied and the security tab is missing?

I have a Windows 2003 Standard x64 Server with SP2. After deleting a large number of folders from a folder, the OS is reporting "Access Denied" on any attempt to read or manipulate the folder. When ...
Jim Counts's user avatar
21 votes
7 answers
1k views

NTFS "Secrets"?

A few weeks ago I was reading through the Wikipedia entry on NTFS, and noticed that it was possible to use Symbolic Links amongst a number of other features that aren't readily apparent in Windows ...
20 votes
3 answers
87k views

Change owner recursively with Powershell?

I'm trying to use Powershell to change owner of a folder, recursively. I'm basically using this code: $acct1 = New-Object System.Security.Principal.NTAccount('DOMAIN\Enterprise Admins') $...
Mikael Grönfelt's user avatar
20 votes
5 answers
20k views

Create NTFS symbolic links from within Linux

Is there a Linux utility that can create NTFS symbolic links? That is, a link on an NTFS partition that points to another NTFS folder - one that will work within Windows 7, specifically. I wish to ...
rymo's user avatar
  • 513
19 votes
3 answers
87k views

Unable to restore from Shadow Copy due to long filename

We have shadow copy enabled on our Windows SBS 2008 server. Attempting to restore a file from shadow copy gave the following error- The source file name(s) are larger than is supported by the file ...
Spongeboy's user avatar
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19 votes
13 answers
356k views

Error 0x80070570: How to delete corrupted and unreadable file?

On my system partition I have a folder which cannot be deleted. This folder has been created by restoring files from an Acronis TrueImage backup. The error message says: Error 0x80070570: The file ...
0xA3's user avatar
  • 243
18 votes
10 answers
67k views

NTFS Folder has no owner, no permissions, can't be deleted

I have a folder a 2003 member server which can't be deleted. Nothing has any permissions (domain admin and running up a cmd prompt as "nt authority\system" using psexec) - always "access denied". ...
winnt93's user avatar
  • 183
18 votes
1 answer
2k views

User accidentally messed up a Robocopy command and caused a bunch of folders to get created with corrupt security

We had a user run a robocopy command to copy some files but unfortunately the user accidentally messed up the syntax. Something like: robocopy "\\server1\share\Accounting" \\server1\share\...
TheCleaner's user avatar
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18 votes
5 answers
55k views

Quickly changing Windows permissions for a huge directory tree?

I have a huge directory on an NTFS file-system (i.e. a top-level directory containing tens or hundreds of millions of descendant nodes with the file nodes probably on average about three levels deep) ...
Chris's user avatar
  • 1,073
18 votes
1 answer
5k views

From bad sector to "damaged file" - did it for Linux/ext3, can I do it for Windows/NTFS?

When a SMART check on a disk reports a bad sector, it is important to be able to identify the file that has the bad sector - and restore it from backups. Below, I show how I did this for my Linux/ext3 ...
ttsiodras's user avatar
  • 413
17 votes
2 answers
8k views

How do you disable the "last accessed" attribute on NTFS/Windows?

Inspired by this answer, I realize I have no idea how to disable the last accessed attribute in Windows to increase performance. If you can, how? I know in Linux you can mount the partition with the '...
romandas's user avatar
  • 3,332
16 votes
3 answers
159k views

List user's folder access permissions

I have a user in a domain who has access to multiple subfolders in multiple folders. His rights were defined pretty granularly. Now he's leaving the company but will continue to work for a firm as a ...
imagodei's user avatar
  • 499
15 votes
4 answers
43k views

NTFS - Domain Admins don't have permissions despite being part of the Local Administrators group

As per "Best Practices" staff in our IT department have two accounts. An unprivileged account and an account that is a member of the global Domain Admins ($DOMAIN\Domain Admins) group. On our file ...
user avatar
15 votes
5 answers
9k views

How can I use PowerShell to enable NTFS compression, in place, on log files older than x days?

I have an application server, running Windows 2012 R2, which generates a high volume of log files, to the point that it runs the application volume out of free space on a semi-regular basis. Due to ...
HopelessN00b's user avatar
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14 votes
6 answers
36k views

Best method to track folder size growth over time?

I have a file server that has a pretty large folder tree. There's a shared folder, under that are 5 departmental folders. Nested inside of those are thousands of subfolders and files. I would like ...
Aszurom's user avatar
  • 463
13 votes
2 answers
6k views

Is it good practice to use NTFS Compression on IIS Log folders?

Is it a good practice to use NTFS Compression on a IIS Log folders and files? I was able to go down from 20GB to 7GB by doing this. The IIS logs are per day, and have an average size of 20MB but some ...
Malartre's user avatar
  • 321
13 votes
3 answers
968 views

What are possible drawbacks of an IIS 7 site having an NTFS junction as a web root?

I am trying to come up with a way to deploy ASP.NET code with as little site disturbance as possible. One thought was to set up the site to be served from an NTFS junction c:\www\example.com where c:\...
jayrdub's user avatar
  • 338
12 votes
1 answer
12k views

NTFS ACL's: What is the difference between object and container inhertiance?

I am looking at using icacls.exe. However, before proceeding, I wanted clarification on the difference between these two ACL's: (OI) - object inherit (CI) - container inherit
Belmin Fernandez's user avatar
12 votes
5 answers
21k views

Resetting NTFS Permissions Disk Wide

Someone messed up majorly in setting permissions on an NTFS drive and I'm looking at a way to reset all permissions to default. The OS will be reinstalled but I'm trying to salvage data from their ...
Andrew Moore's user avatar
12 votes
1 answer
16k views

Sluggish performance on NTFS drive with large number of files

I am looking at this setup: Windows Server 2012 1 TB NTFS drive, 4 KB clusters, ~90% full ~10M files stored in 10,000 folders = ~1,000 files/folder Files mostly quite small < 50 KB Virtual drive ...
Paul B.'s user avatar
  • 293
11 votes
9 answers
27k views

Flash Drives - should be formatted NTFS?

Should Flash Drives be formatted NTFS? What are the Pros & Cons of doing so?
jinsungy's user avatar
  • 368
11 votes
3 answers
3k views

Why does Windows process all NTFS child objects when changing a parent’s ACL?

Why does Windows process all NTFS child objects when changing a parent’s ACL? I would expect this behavior if I had checked the “Replace all child object permissions...” box, but even when that box ...
Corey's user avatar
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11 votes
3 answers
29k views

Get the Allocation Unit Size from NTFS disk

I need to find out the "Allocation Unit Size" selected when a particular hard-disk was formatted. It doesn't appear in the properties information for the drive. Is there any easy way to get this ...
Simon Johnson's user avatar
11 votes
6 answers
16k views

Install GRUB on NTFS

I would like to install 2 completely independent instances of Windows XP (no data should be shared) in my computer within 2 different primary partitions. I know that grub can handle booting them ...
karatchov's user avatar
  • 415
11 votes
6 answers
17k views

How can I compact the VHD file with Ubuntu?

I use windows server 2008r2 with role Hyper-V. The guest system is Ubuntu 12.04 LTC. It is situated on the dynamic virtual hard disk. I want to compact this VHD (The real size is 50 GB, 360 GB on the ...
AmShegar's user avatar
  • 259
11 votes
2 answers
25k views

What is the best way to fix NTFS file permissions to inherit parent?

When XP clients move files on the same volume, the permissions are moved with it. With Windows 7 clients and up, when a file is moved, the permissions are inherited. Unfortunately, we still have a ...
Ryan Mortier's user avatar
11 votes
5 answers
5k views

Does Windows have a checksumming filesystem like ZFS or BtrFS?

I use ZFS and love it. I know that BtrFS also supports checksumming. I've been told that checksumming is available in Windows 2008, but I've been unable to verify this. Are there checksumming ...
royco's user avatar
  • 613
10 votes
8 answers
786 views

Crashed Hard Drive Data Retrieval

I recently had a laptop hard drive crash on me and am trying to rescue some of the data on the original drive. As such, I've extracted my failed hard drive and installed it in a USB enclosure. I've ...
Nate's user avatar
  • 557
10 votes
6 answers
14k views

Configuring NTFS file system for performance

We have an application that is planning to store around 1.1TB of XML files which average 8.5kb in size. These represent a rolling 18 months of data, with around 200,000 new files being created every ...
Richard Ev's user avatar
10 votes
8 answers
6k views

Is this a recommended/valid approach for file server permissions?

File servers are a fact of life in IT and I'm curious if there are any generally accepted practices (I hesitate to use the word "best" here) for how you create groups and apply permissions for ...
David Archer's user avatar
10 votes
2 answers
4k views

Windows Server Backup Error - Volumes Larger than 16.7TB cannot be protected?

I'm trying to use Windows Server Backup to backup a RAID array on my new server. But, when I do, I run into this error: The server is running Windows Server 2012 R2 and the array in question is 20TB ...
Chris Powell's user avatar
9 votes
2 answers
6k views

How can I split a drive image created with 'dd' into separate files for each partition?

I created an image of a failing drive with: dd if=/dev/sde of=/mnt/image001.dd The drive had only two partitions: Device Boot Start End Blocks Id System /dev/sde1 * ...
Joe A's user avatar
  • 300
9 votes
7 answers
108k views

How to resize the primary partition in Windows Server 2008?

We have a Windows Server 2008 with C: and D: drives. I freed up 30 GB from the D: drive using the "shrink volume" option and that needs to be added to C: drive. But the extend volume on the C: drive ...
Gopinath's user avatar
  • 229
9 votes
3 answers
17k views

Does using a large NTFS disk allocation size for a file share make a difference?

I'm formatting a drive using NTFS which will be dedicated as a file share for users to centrally store their files. The files will likely be large (10's to 100's of megabytes). Someone suggested ...
dso's user avatar
  • 553
9 votes
5 answers
19k views

Security: Unable to display current owner

I have a user with local administrative rights on their Windows 7 64-bit box. They extracted a file from a zip file they downloaded with the Zip shell extension to their desktop on a non-encrypted or ...
Jim McKeeth's user avatar
  • 1,906
9 votes
1 answer
201 views

Windows / NTFS - is it possible to measure completion time of file operations?

I'm looking for possibility of measuring how much time it takes to finish file operation issued to NTFS driver (open file close file delete file, write, read etc) and to be able to log it. I can't ...
Mariusz Zieliński's user avatar
8 votes
5 answers
5k views

Protect files on NTFS volume from Domain Administrators

We're a small company with a 2008R2 domain on which we have a file server with several shared volumes. We have a number of IT staff in the domain administrators role, because effectively we're all on ...
bab's user avatar
  • 443
8 votes
3 answers
14k views

NTFS: How do I find the sector(s) a file is occupying?

On my hunt to find an answer, I came across an answer to the opposite question, how to find which file occupies a sector (on Windows, use nfi.exe from the Windows 2000 OEM toolkit). From what I ...
brandeded's user avatar
  • 1,860
8 votes
2 answers
8k views

Windows 2003; Find folders with non-inherited/changed permissions

The question: I'm looking for a good way to audit/search a directory structure (Windows 2003) and locate any folders that either don't inherit permissions from their parent -or- have additional users/...
Chris_K's user avatar
  • 3,444
8 votes
3 answers
4k views

How to see if/when a long file copy operation actually completed?

Having to move several very large files (VHDs) between two servers, I launched the file copy operation using Windows Explorer in a Remote Desktop session, and then closed the session without logging ...
Massimo's user avatar
  • 70.7k
8 votes
1 answer
2k views

How do NTFS permissions become improperly ordered?

I have some files on a network share and they were read-only accessible to users. I had set the permissions to provide full rights to all domain users - when I checked the main folder, this was still ...
David Mackey's user avatar
8 votes
4 answers
5k views

How do I force ntfsresize to ignore the backup bootsector?

I cloned one hard drive to another and things are working well. Except for my NTFS volume not taking up the entire partition (due to the older volume being smaller). Doing this: sudo ntfsresize -x /...
UsAaR33's user avatar
  • 1,116
8 votes
4 answers
37k views

Why can't I delete a folder that I have ownership (+ children) AND full control permissions (+ children) on?

I've got some leftover Windows update temporary folders (they have GUID-ish names) on the root of the system drive. I'm trying to clean these up, but am getting the following behavior upon deletion ...
Trevor Sullivan's user avatar

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