—specifically the processor—is significantly underpowered for modern versions of Windows.
Before we dive into the installation process, let's take a look at the hardware specifications of the Samsung ATIV Tab GT-P8510: samsung ativ tab gt-p8510 install windows 10
Q: Can I roll back to Windows 8.1 if I encounter issues with Windows 10? A: Yes, you can roll back to Windows 8.1 if you encounter issues with Windows 10, but you'll need to have a copy of the Windows 8.1 drivers for your tablet. then cut to Windows 10 booting.
However, community-driven "unofficial" methods exist for similar ARM tablets (like the Surface RT) that may theoretically apply, though they carry a high risk of bricking your device. samsung ativ tab gt-p8510 install windows 10
B-roll of the tablet, close-up of Windows RT 8.1 home screen, then cut to Windows 10 booting.