Did you run the ISO file or the Installation Assistant which can still enforce gating or blocks while ISO file should not?
If they've blocked the ISO file too, then the only option is to Clean Install by making the bootable media:
https://www.microsoft.com/en-in/software-downlo...
If you'd like to try one to compare how much better it is than any Upgrade install, then Make sure during the booted install to unplug all other drives, boot the media as a UEFI Device, choose Custom Install, delete all partitions down to Unallocated Space to get it cleanest, choose the Unallocated Space, click Next to auto-create and -format the needed partitions and begin install - this makes it foolproof.
After install expedite all Windows Updates including Optional until no more are offered. Then import any drivers from the PC maker's Support Downloads web page for your model that are newer, or branded instead of generic. The most basic thing we need to learn to maintain a PC is how to keep the latest manufacturer's drivers current. Windows drivers are rarely enough.
I hope it helps. Feel free to ask any questions.
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