The Windows 10 Pro has several built-in features that aim to make it easier for users to download and install new software. However, users can't find Krnl on the Microsoft Store. It can be downloaded by following these steps:
Start by getting the official Krnl Download on your Windows 10 Pro
Then, launch its Setup and Allow any prompts
Next, Install it by following the instructions on your screen
Once finished, you can either disable your firewall/antivirus or add Krnl as an exception
Finally, launch the Krnl and start using it for your needs.