Hello,
Please uninstall, then place your UAC setting to the lowest possible(read below), then reboot, then disabled anti-virus temporarily until install is complete, then install game but not in programs, like mentioned before i.e. C://Games.
To disable UAC in Windows 10.
1. Open the Control Panel (icons view), and click/tap on the User Accounts icon.
2. Click/tap on the Change User Account Control settings link.
Note Note
This will open the C:\Windows\System32\UserAccountControlSettings.exe file.
3. If prompted by UAC, click/tap on Yes.
4. Move the slider up or down to the setting for how you want to be notified by UAC, and click/tap on OK.
5. If prompted by UAC, click/tap on Yes.
6. When finished, you can close User Accounts if you like.
Let us know here what happens.
Adam