Unreal Crashes during installation


I’ve been using Unreal Engine since version 4.11 never had any crash during the installation. I just did a fresh WIN10 installation to my workstation and wanted to install Unreal Engine 4.27 and 5EA. Both of them crashed during installation. However, I was able to open the engine. But If I try to play or render something, It crashes. When I try verifiying the installation, it also crashes. This is the only part I understand from the log file “WinReg: ERROR: Could not create registry value SOFTWARE\EpicGames\Unreal Engine\5.0EA/InstalledDirectory. Error Code 5: Access is denied.”
Again, never had this kind of problem before. Anyone has any idea ?

Thank you!