[РЕШЕНО] Что значит «Error 0x80070005: Access is denied» при запуске Hyper-V в Windows 10 Pro?
Решение с SF https://serverfault.com/a/890416/305435This is known to be caused by disabling Windows `Control flow guard (CFG)`.
To turn this back on:
 - Search for and open `Windows Defender Security Center` on the start menu.
 - Go into `App & browser control`
 - Scroll to the bottom and click on `Exploit protection settings`
 - Ensure that `Control flow guard (CFG)` is set to `On by default`
Пользователь входит в группу "Администраторы Hyper-V"?