Transfer old Windows 7 key to new PC?

Tomorrow I want to transfer the Windows 7 key of my old laptop to my new PC. What do I have to pay attention to on the old laptop that Microsoft does not think that I use one key on 2 devices. Is it enough if I no longer use this laptop or do I have to reset it completely?

If you have set up a Microsoft account, you can log off the laptop there and then continue to use the key without any problems.

If you don't have an account yet, simply set up an account with the old laptop first.

All right!

First you should read out the Windows 7 Product Key with this tool and write it down: https://www.chip.de/...63752.html

Then you can remove the Windows 7 activation. It works like this:

Start the command prompt as an administrator
Then enter the following command: slmgr -upk

Wait until the message appears that the product key has been uninstalled

Then the Windows 7 activation is gone.

Then you can use this Windows 7 key to install and activate Windows 10 on the new PC. It's still free. To do this, you should also create a Microsoft account and use it to log into Windows 10. Then go to activation and enter the Windows 7 product key there. The activation will then be permanently saved in your Microsoft account.

If you have to reinstall Windows 10 on the new PC, simply log in to Windows 10 again with your Microsoft account. Then it will be reactivated automatically. You then no longer have to enter the key. This is then a digital license.

I would then install the Cloudready operating system on the old laptop. This is a free, customized Chrome OS operating system that can be installed on any device. Here is the download: https://www.neverware.com/freedownload You need the USB Maker and an empty formatted USB stick with at least 8GB. Then boot this stick on the old laptop. The installer deletes everything and installs Cloudready. It runs extremely quickly even on laptops that are over 10 years old. The browser starts without delay. So you can continue to use it sensibly without spending any money on it.

Here is a video of what Cloudready looks like: