Win10 requires repair after drive cloning?

My parents wanted me to have their laptop repaired, which I already advised against when buying it (Terra). The hard disk definitely shows signs of age, extremely slow, it takes a good 30 minutes to boot up on the desktop. Half of the keyboard keys do not work either. They also did the Win10 upgrade.

Now I don't even have the Windows license key, but I still wanted to clone the system to an SSD to fix the speed problems. The cloning went smoothly in 2 hours, the first start, however, directly an error message:

"The PC / device needs to be repaired. A required device is not connected or can't be accessed. 0xc000000e"

All I changed was to shrink the rest of the storage partition (almost 1 TB, only 130GB used. Otherwise it would not have fit the 480GB SSD) and the Toshiba HDD was replaced by a SanDisk SSD Plus (480GB).

A new installation was not possible. The device was sold by a "computer specialist" who is now bankrupt. A license sticker is nowhere to be found, we do not have a key and no key is displayed in the system. So cloning the drives was the only solution.

What went wrong here? Which device is missing from the system at once? Does it have anything to do with the changed hard drive?

Hmm to your questions above I can't help you, but it should be possible to install windows 10 fresh on a SSD using a USB and you can easily buy the license key online. That would be the easiest solution I guess

Windows 10 is available for download from MS. An OEM key is available online for less than 10 euro.

I can then only install via CD / DVD. All of my USB bootsticks are now scrap, the formatting of the partitions went wrong at some point. And that takes an extremely long time.

Not to mention that all the programs that my parents want to keep are gone.

Reinstalling via DVD always takes an extremely long time. In addition, my parents would not like it if all of their programs were gone. Not to mention that you would have to re-enter the passwords and access data for all of your accounts, but you no longer know.

That's why cloning instead of reinstalling.

But obviously it doesn't work. Have you ever connected the hard drive to a PC and checked whether it is running?

It may well be that the mistake is somewhere else.

I think that the hard disk is the cause for the long boot time, but a dilapidated operating system. - Only a new installation of the laptop helps.

The previously installed programs can be reinstalled.
If an MS Office was installed, secure the product key for the new installation.

If your parents use an e-mail program like Thunderbird, save the profile folder from the hidden folder "Roaming" from the hard drive.
It must then be reinserted on the SSD before the new Thunderbird installation in the "Roaming" folder of the new system.

Since Win10 was once installed and activated on the laptop, a product key no longer needs to be entered when reinstalling Win10. - It is stored in the UEFI / BIOS.
The activation takes place automatically, at the latest with the first Windows update.

My advice:
Delete all partitions on the SSD as shown in the video from minute 4:50 to 6:30 and then reinstall Win10.

All partitions are merged into an "unallocated space".

To Win10 installation: Mark this storage space> Click "Next"…
This space is partitioned, formatted and Windows installed on it in one go.

Important:
Since this is a laptop, fully charge the battery before installation and leave the power adapter connected during installation.

Make sure that the laptop is connected to the Internet via LAN during the Win10 installation.
The installation program then has the option of automatically downloading and installing the required device drivers - otherwise Microsoft drivers will be installed from the installation disk.