{"id":144586,"date":"2020-12-18T19:09:50","date_gmt":"2020-12-18T13:39:50","guid":{"rendered":"http:\/\/www.thewindowsclub.com\/?p=144586"},"modified":"2022-01-16T09:14:00","modified_gmt":"2022-01-16T03:44:00","slug":"usb-selective-suspend-enable-disable","status":"publish","type":"post","link":"https:\/\/www.thewindowsclub.com\/usb-selective-suspend-enable-disable","title":{"rendered":"What is USB Selective Suspend feature? How to enable or disable it?"},"content":{"rendered":"

Windows 11\/10 has been getting a lot of useful features. These features released are both consumer-based and developer-based. Along with this, they have not missed improvising the old features. One of these features is USB Selective Suspend feature.<\/strong><\/p>\n

What is USB Selective Suspend feature in Windows?<\/h2>\n

In Windows OS, the Selective Suspend feature allows the system to save power by putting certain USB ports into a suspended mode. It lets the hub driver suspend a single port but does not affect the functioning of other ports. For instance, it\u2019s similar to how users put their laptops or other devices in Sleep Mode \u2013 Selective Suspend is almost like that. The feature which makes it so interesting is that it can suspend a specific USB port individually, without affecting the power of the entire USB port. However, the driver for the USB device must support Selective Suspend for it to run right.<\/p>\n

The USB Core Stack supports a modified revision of the Universal Serial Bus Specification and is called ‘selective suspend’. This allows the Hub Driver to suspend a port and help conserve the battery. Suspending services like Fingerprint Reader, etc., which are not required all the time, helps improve power consumption. The behavior of this feature is different for devices operating in Windows XP and kept improving in Windows Vista and later versions.<\/p>\n

Users don\u2019t really need this on a system that is already charging and can avail of the plug-in power whenever it needs to. This is why Windows lets users enable the USB Selective Suspend based on the computer\u2019s plug-in or battery. But the Selective Suspend feature isn\u2019t exactly a requirement on a desktop machine that is plugged into power. When a USB port is powered down, it doesn\u2019t necessarily save that much of power on a desktop. That\u2019s why Windows allows you to enable or disable USB Selective Suspend based on the computer being plugged in or on battery power. This feature is incredibly helpful in portable computers for power-saving purposes.<\/p>\n

How to enable or disable USB Selective Suspend<\/h2>\n

Some users have reported that at times the USB port does not get turned back on after Selective Suspend has been applied. Or sometimes even turns itself off without warning. To fix this, you need to disable the USB Selective Suspend feature on your system. Here\u2019s how you can do it:<\/p>\n

Related<\/strong>: USB Suspend:USB Device not Entering Selective Suspend<\/a><\/p>\n

Via Power Options<\/h4>\n

Open Control Panel on your Windows PC. To do this, search for Control Panel\u00a0<\/em>in the search box.<\/p>\n

Now, navigate to this path: Control Panel > Hardware and Sound > Power Options.<\/p>\n

Click on your selected Power Plan, then click on\u00a0Change Plan Settings<\/em>.<\/p>\n

\"\"<\/p>\n

This will take you to a new page where you will need to click on\u00a0Change advanced power settings.<\/em><\/p>\n

\"\"<\/p>\n

Now a new and more detailed box of Advanced power options<\/em> will appear. There will be a menu that says\u00a0USB Settings<\/em>.<\/p>\n

Expand that option, and you will find two sub-options there that will be labeled as\u00a0On Battery\u00a0<\/em>and\u00a0On Power<\/em>.<\/p>\n

\"USB<\/p>\n

You can choose to enable both of them individually as per your choice.<\/p>\n

Click on\u00a0OK<\/em> for the change to take place.<\/p>\n

Related<\/strong>: Selective Suspend causes USB devices on USB hub to stop functioning<\/a>.<\/p>\n

Using Windows Registry<\/h4>\n

To disable the Selective Suspend feature via the Registry Editor, do the following:<\/p>\n

Since this is a registry operation, it is recommended that you back up the registry<\/a>\u00a0or\u00a0create a system restore point<\/a> as necessary precautionary measures. Once done, you can proceed as follows:<\/p>\n