Power off USB ports when the computer is turned off
Note! Modern computers can provide power to USB ports even after being turned off, but this often happens while in sleep mode. However, this is not always necessary, especially if peripheral devices with LED backlight are constantly connected to the computer, which means they remain lit even after the device is disconnected.
Method 1: Deactivate the “Quick Start” feature
Important! All actions will be performed on the example of the Windows 10 operating system, but they will remain applicable to other current versions (Windows 7/8.1/11). Differences can only be observed in the graphic design and location of some interface elements.
The Fast Startup feature is designed specifically to speed up the process of waking your computer from sleep, but other problems may occur as a result. For example, the operation of USB ports even when the computer is turned off. To correct the situation, you will need to go to a special menu and deactivate the “Quick Start” function. This is done as follows:
- Launch the “Control Panel” in any way possible. The easiest way to do this is to use the search system. Enter the appropriate query and in the results, click on the application of the same name.
- After the corresponding window appears, change the menu item presentation mode to “Large Icons” or “Small Icons”. This is done through a special drop-down menu in the upper right corner. Then go to the “Power Options” section.
- Proceed to the menu “Power button actions” by clicking on the appropriate link located on the sidebar on the left.
- Activate the additional options panel to be able to change it. To do this, click on the line “Change settings that are currently unavailable.”
Note! The described action requires the user to have administrative rights. If you’re having trouble with this, please follow the link below for instructions on how to get elevated privileges.
Read more How to Obtain Administrator Privileges in Windows 10/7
- After the additional panel with parameters has become active, uncheck the item “Enable fast launch.” Then click the Save Changes button to apply the new configuration.
Note! Often, the deactivation of the “Quick Startup” function is performed in order to get rid of problems with waking up from sleep mode. If such a problem occurs, we recommend that you read the corresponding article on our website.
Method 2: Activating the “Dead Sleep” feature in the BIOS
Important! Computer and motherboard manufacturers use their own BIOS implementations, which makes it impossible to provide a universal guide for setting up Dead Sleep mode. When following the steps below, please note that some menu item names and locations may differ.
The “Dead Sleep” function activates a special mode of computer operation in which, after turning it off, power is removed from all connectors on the motherboard. Accordingly, this will help in completing the task, but it is important to understand that the “Dead Sleep” mode is not on every computer, and on some this function is called differently—“Deeper Sleep,” “C3 ACPI,” “C4 ACPI,” “+5VSB,” “Deep S4”, and the like.
The first step is to enter the BIOS or UEFI (depending on the model of the motherboard). To do this, you need to press a special key during computer startup, which may differ on different devices. We recommend that you seek help from a special article on our website, which provides an example of all the keys and their belonging to a specific model of the motherboard or laptop.
How to enter the BIOS on a computer or laptop
After entering the BIOS or UEFI, you need to find a parameter with one of the names indicated earlier and change its value to “Enabled”, and then save all changes. The easiest way is to use the hot key F10, confirming the action in the pop-up dialog box.
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