Hello Chipi,
Welcome to Microsoft Community.
Since you wrote this thread in English and the question relates to the Surface Pro 8, we've moved your thread to the correct location.
Although cloning hard drives is a very common operation in other brands of devices, I hope you can understand that due to the special nature of the Surface series of devices, the SSD obtained through this step cannot be used in Surface devices due to the lack of drivers and firmware for the Surface Pro 8.
Therefore, for the Surface family of devices, we do not recommend our customers to copy the old system into the Surface by "copying", because this is neither a safe way nor a complete process.
If the data in this SSD comes from your Lenovo Thinkbook, then you have saved a backup in your Thinkbook. So now what you need to do is:
- Create a Surface dedicated recovery drive to restore your Surface Pro 8 to factory Settings so that your Surface Pro 8 can boot and enter your desktop normally: Creating and using a USB recovery drive for Surface - Microsoft Support
- Copy the data through the USB flash drive to carry out the data transfer, rather than trying to "copy" the old system.
With the Surface serial number, you can get a recovery image that matches the Surface Pro 8. Complete recovery drive creation steps and usage instructions are in the video linked above.
Best Regards,
Mitchell | Microsoft Community Support Specialist