Enable Windows 10

Enable Windows 10

Enable Windows 10 (even with old key from Windows 7 & 8)

Windows 10 was earlier, except for a purchase version, only by upgrading Windows 7 or 8 enable. In newer Windows 10 versions, this also works with the old Windows 7 and 8 product key. We’ll show you how to enable Windows 10 with Windows 7 or 8 Product Keys.

Enable Windows 10 with old key of Windows 7 and 8

When you activate Windows 10, you can do some things wrong, which led to many error messages and operating systems that simply could not be activated. Finally, you can also install Windows 10 from build 10656 with your old key from Windows 7 and 8.

For which versions do the old product keys work?

They work according to Microsoft both for upgrade variants as well as for a new installation (Clean Install).

This does not mean that every Windows 10 can be activated with old Windows keys.

Presumably, those keys that came with a particular PC will only work for that PC.

Enter old key during installation

Installs Windows 10, either as an upgrade or as a reinstall.

During the installation, the product key is queried, where you can first try to enter the old key of Windows 7 or 8.

Attention: Entering Old Key later in Windows 10 does not work reliably

We recommend that you enter the old key from Windows 7 or 8 directly during the Windows 10 installation – for the following reason:

  • Although Windows 10 offers to enter the key later in Windows, this did not work for us.
  • We had selected “Windows 10 Pro” during installation and I did not click a product key.
  • We only welcomed Windows 10 S, even though we had chosen the Pro version!
  • When we tried to enter the Windows 7 key retrospectively under Settings> System and Security> Activate via the button Change Product Key, we got the message that the activation worked.
  • Also, we were told that we had the Windows 10 Pro version.
  • However, we could not open a command prompt or other programs far from the Windows Store – a restriction of Windows 10 S.
  • According to updates, we were up to date. Windows 10 still behaved like Windows 10 S.
  • Even a restart brought nothing.
  • In short, we only had trouble with this type of key activation.
  • Therefore, we recommend that you always enter the key during installation to avoid unnecessary trouble.


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