how to put my external hard disk to sleep manually windows 11

Hello. On the taskbar there should be a usb little icon you can choose unmount device. Also you can use

cmd.exe

diskpart.exe

select disk #

remove letter #

exit

Or you can buy a Usb docking station that has a built in switch on it.

Thank you very much for reaching out! As an Independent Advisor and fellow Microsoft user, I'm more than happy to assist you.

To manually put your external hard disk to sleep on Windows 11, you can use a combination of built-in Windows settings and third-party tools. Here are some methods you can try:

Using Power Options

1. Open Power Options:
   • Go to Control Panel > All Control Panel Items > Power Options.
2. Change Plan Settings:
   • Click on Change plan settings next to your current power plan.
3. Advanced Power Settings:
   • Click on Change advanced power settings.
   • Expand the Hard Disk section and set Turn off hard disk after to a desired value (e.g., 1 minute) or Never if you want to prevent it from sleeping.

Using Third-Party Tools

1. revoSleep:
   • This tool can manually put your hard drive to sleep. However, Windows processes might wake the drive up randomly.

Using Command Line Tools

1. hdparm:
   • This tool can send ATA commands to put the drive to sleep. However, it might not work reliably with USB drives due to the USB to ATA bridge limitations.
   • Command:  hdparm -Y /dev/sdX (replace /dev/sdX with your drive's identifier).

Additional Tips

• Disable Indexing:
  • Sometimes, Windows indexing can wake up the drive. You can disable indexing for your external drive to prevent this.
• Use a Physical Switch:
  • If you have a spare 5.25" bay or a PCIe slot, you can use a physical switch to power off the drive completely.

Please feel free to reach out if you require any additional assistance. I'm here to help!