Windows 10: windows10 key activation after change devices

When I newly put my PC together and enter the win10 key I was using, it says that I can't authenticate on this device because it's already been used by another device.Error Code: 0xC0040C020I want to disable my existing windows and activate it on my new PC.

:)

 

Taskbar bug: switching to another window -will not appear at the front


Follow either of these steps to fix the issue with the Active window hiding behind.

Method 1:
I suggest you to disable window by hovering over it with the mouse and check if it helps. To do so I suggest you to try the below given steps and check if it helps:

1. Press Windows key + X key and click on Control Panel.
2. Select or click Ease of Access.
3. Click or tap onEase of Access Centre.
4. Click on Make the Mouse Easier to Use was uncheck Activate Window by hovering over it with the mouse.
5. Check if issue is resolved.

Method 2:
I would suggest you to completely uninstall the touchpad driver and reinstall it. Kindly follow the below given steps.

1. Press “Windows key + X” and click on “Device Manager”.
2. In the list of devices, you should see the touchpad drivers.
3. Right click on the device and then select "Uninstall".
4. In the uninstall dialog, make sure you select the option to delete the driver package from the system. This causes the driver package installed earlier to be deleted.
5. In the Action menu of Device manager, select “Scan for Hardware changes” option. This will cause the device driver to be reinstalled. Once the driver is installed, close all windows and restart the computer.

 

Important W10 activation key questions left unanswered by Microsoft

Not only that, you can check your M$ account and see what devices are listed there, so you know if you can do a clean install or not. Do the upgrade, get it activated, verify that it is listed in your account, then feel free to do a fresh install without activation issues ever.

 

Taskbar bug: switching to another window -will not appear at the front


I have been trying to fix this for months. Your solution Method 1 seemed to work. THANK YOU!!!!