TRIM permits an operating system to pass information regarding blocks of data which are lying unused for several days and can be potentially removed internally. The TRIM command assists in managing the performance of Solid State Drives at a good state over the entire span of life of the hard drive. TRIM’s primary operation include getting rid of all unused data from SSD’s memory calls by making the SSD to function at its top speed. Since a memomry block is to be re-programmed, TRIM amends its functioning speed by getting rid of all unwanted data, thereby permitting SSD to perform write operation for new data without even the need to perform erase operations.

TRIM Support Requirements:

1. Windows 7 or Windows 8 / Windows 8.1
2. SSD with TRIM enabled firmware
3. BIOS/UEFI storage controller set to AHCI/SATA mode

Stps to Enable or Disable SSD TRIM Support in Windows 7 / Windows 8 / Windows 8.1

1. To check if TRIM Support is enabled or disabled, open a command prompt and enter the following command.

fsutil behavior query disabledeletenotify

Just compare your results with the results given below to check whether TRIM Support is enabled or not.

DisableDeleteNotify = 1 = TRIM support disabled

DisableDeleteNotify = 0 = TRIM support enabled

TRIM Support Status Check

2. To Enable TRIM Support for SSDs, enter the below command in a command prompt.

fsutil behavior set disabledeletenotify 0

Enable SSD TRIM Support

3. To Disable TRIM Support for SSDs, enter the below command in a command prompt.

fsutil behavior set disabledeletenotify 1

Disable SSD TRIM Support

That’s it. If you have any query related to this, feel free to ask here.


Nick is a Software Engineer. He has interest in gadgets and technical stuffs. If you are facing any problem with your Windows, feel free to ask him.


  1. command “fsutil behaviour query disabledeletenotify” is wrong

    right syntax is “fsutil behavior query disabledeletenotify”

  2. Just upgraded from Vista to Win 7. Windows Updates will not configure for any updates that require computer to restart. I’m getting a screen that reads “failure configuring windows updates” &”reverting changes” & “do not turn off your computer” all on one screen. Please help


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