Fortunately, if you get the error in Chrome, the solution is quite simple.
Go to Start or press CTRL + R,
Search for Regedit,
Open Regedit,
Go to the following directory:
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies
You can also copy and paste the directory in Regedit
Right click the Google key,
Click on Delete.
FIX: ERR_BLOCKED_BY_ADMINISTRATOR for Microsoft Edge Beta
In Microsoft Edge it’s a different error than in Google Chrome.
I recently started using the Microsoft Edge Beta version because it ran on Chromium and you could finally create separate user profiles. In the newest stable Microsoft Edge you can also create profiles now.
After using Edge for a while I suddenly couldn’t open certain URLs anymore.
reference:https://bwit.blog/fix-err_blocked_by_administrator-in-chromium-browsers/
Hope this information can help you
Best wishes
Vicky