TRIM is a feature in Windows 7 and above that immediately frees up the space on a solid state drive (SSD) that was previously occupied by a deleted file. This allows Windows to re-use those no longer needed memory locations right away instead of having to search for unused locations elsewhere on the drive. In a nutshell, having TRIM enabled keeps your SSD from slowing down with regular use, and it makes the drive last longer to boot. TRIM is enabled by default in Windows 7 and above. Therefore, when you install a new SSD, the drive should automatically take advantage of TRIM without you having to enable it. That being said, sometimes TRIM will get turned off for some reason – and on rare occasions it won’t be enabled at all. After you install a new SSD in your computer and boot into Windows for the first time, you should immediately check to see if TRIM is enabled. Here’s how: 1 – If you’re running Windows 7, click the Start button to display the Search box. If you’re running Windows 8 or above, press the Windows+ S key combination to display the search box. 2 – Type cmd into the Search box. 3 – Right-click on cmd.exe and select Run as Administrator. A DOS window will open and display a command prompt. 4 – Type (or copy and paste) fsutil behavior query DisableDeleteNotify at the command prompt, then press the Enter key. The usual answer is to issue a command 'fsutil behavior query DisableDeleteNotify'. I am not sure how useful this is as even if a Windows 7 system doesn't have an SSD the command still returns '0'. All we have proved here is that Windows 7 is capable of executing the Trim command not that it is actually. How to Check and Enable or Disable SSD TRIM Support in Windows 7 and Windows 8 Information The TRIM command helps to maintain the perform. If TRIM is already enabled, you should see the following: DisableDeleteNotify=0. If so, you don’t need to do anything further. But if you see DisableDeleteNotify=1 instead, TRIM is disabled and you will need to proceed with step 5 below to enable it. 5 – You should still have the DOS window open and a command prompt displayed. If not, repeat steps 1 – 3 above to re-open a DOS window. 6 – Type (or copy and paste) fsutil behavior set DisableDeleteNotify 0 at the command prompt, then press the Enter key. ![]() TRIM support should now be enabled. You can verify that TRIM has been properly enabled simply by typing (or copying and pasting) fsutil behavior query DisableDeleteNotify at the command prompt once again. That’s all there is to it. Ensuring that TRIM is enabled will keep your SSD running smoothly and ensure that it lasts as long as possible. TRIM is a special ATA command which was developed to keep the performance of your SSD drives at peak performance for the duration of your SSD's life. TRIM tells the SSD controller to erase invalid and unused data blocks from the storage in advance, so when a write operation happens, it finishes faster because no time is spent in erase operations. Without TRIM automatically working at the system level, your SSD performance will degrade over time unless you manually use a tool which can send the TRIM command to it. Here is how to disable or enable the TRIM function for your solid state drives in Windows 10. RECOMMENDED: By default, TRIM is enabled for all SSDs. However, it is a good idea to check if TRIM is correctly enabled for your SSD in Windows 10 before proceeding. Refer to the following article: In short, you need to execute the following command in an elevated command prompt: fsutil behavior query disabledeletenotify In the output, you may find one of the following values. NTFS DisableDeleteNotify = 0 - TRIM support is enabled for SSDs with NTFS NTFS DisableDeleteNotify = 1 - TRIM support is disabled for SSDs with NTFS NTFS DisableDeleteNotify is not currently set - TRIM support for SSDs with NTFS is not currently set, but will automatically be enabled if a SSD with NTFS is connected. In Windows 10, TRIM is supported for both NTFS and file systems. If your drive is formatted with ReFS, the fsutil command will report the following. ![]() ReFS DisableDeleteNotify = 0 - TRIM support enabled for SSDs with ReFS ReFS DisableDeleteNotify = 1 - TRIM support disabled for SSDs with ReFS ReFS DisableDeleteNotify is not currently set - TRIM support for SSDs with ReFS is not currently set, but will automatically be enabled if a SSD with ReFS is connected. As you may know, when you delete any data from your solid state drive, Windows marks it as deleted. However, the data physically remains on the drive and can be recovered. It is the SSD controller's garbage collection, wear levelling algorithms and TRIM which tell it to wipe the blocks so they are empty and ready to be rewritten. Thanks to TRIM, storage blocks which contain the deleted data will be wiped and the next time the same area is written to, the write operation will be performed faster. To enable TRIM for SSD in Windows 10, you need to use the FSUTIL tool. Do the following. • If your drive is formatted with NTFS, use the following command to enable it. Fsutil behavior set disabledeletenotify NTFS 0 The following command will disable it. Fsutil behavior set disabledeletenotify NTFS 1 • If your drive is formatted with ReFS, use the following command to enable TRIM for your SSD: fsutil behavior set disabledeletenotify ReFS 0 The opposite command is as follows. Fsutil behavior set disabledeletenotify ReFS 1 That's it. You are here: » » How to Enable TRIM for SSDs in Windows 10.
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March 2018
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