Windows 10: Device Setup Manager - disconnecting all devices periodically

Hello, hoping someone can help with an issue I've been having for a few days now. Every 90 minutes or so I'll hear a device disconnect / connect sound in Windows 11. Sometimes my keyboard or mouse will stop working for a split second, sometimes my screen will freeze or go black for a split second.I've checked Event Viewer and there's an event from Device Setup Manager coinciding will these disconnects. The first event is "Device Service Start" followed by an event for each of my devices saying it's been serviced. The last event is for Device Service Start shutting down.I've checked task schedu

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Device Manager Un-Hiding Hidden Devices

When you connect a plug and play device, Windows Plug and Play manager detects it, finds and installs the driver. Device Manager lists the device with a solid icon.

The driver is only removed when you uninstall the device, not simply by disconnecting the device. When the device is disconnected, its driver is still installed. By default, Device Manager only displays connected devices. When you show hidden devices, note the Bluetooth icon you see is semi-transparent (not opaque). That indicates a "non-present" device. Sometimes also called a "ghost" device. The driver is still installed but the device is not currently detected (i.e. not connected).

Device can be disconnected when

• Device unplugged (e.g. removing a USB device)
• Turning a device OFF
• Disabling the device in BIOS (then windows won't detect it) or
• Device failure

So

• Check BIOS as suggested
• Check board connections
• Can b/t be turned off by a switch? or keyboard combination?

Also possible the b/t h/w failed

 

No hardware listed in Device manager?

I don't konw whathappend but in Device manager and in my Network connections there is nothing where there used to be a Modem listed and all my hardware in Device Manager. What happend and how do I fix this?

 

Hide disconnected devices in Device Manager

I used this command to show disconnected devices: SET DEVMGR_SHOW_NONPRESENT_DEVICES=1
But then I wanted to hide them, so I entered: SET DEVMGR_SHOW_NONPRESENT_DEVICES=0
But it still shows disconnected devices! (When I click view/show hidden devices). Problem is even normally this doesn't show disconnected devices! And it does only after entering this command with value 1!

I need to have enabled show hidden devices in Device Manager, but so it doesn't show everything. So I need to revert this command. Problem is as I said: setting it to 0 does nothing! And I even created enviromental variable with value 0 to disable it. Even after restart: device manager still show disconnected devices!

https://docs.microsoft.com/en-us/win...hidden-devices