ETG Mod installer error

[Weftin]

ETGMod Installer v17.10.19
Entering the Modgeon
No previous mod installation found.
Still reverting to unmodded backup...
Reverting: EtG.exe
WARNING: Backup not found for EtG.exe
Reverting: Assembly-CSharp.dll
System.UnauthorizedAccessException: Access to the path 'D:\Programs\Steam\SteamApps\common\Enter the Gungeon\EtG_Data\Managed\Assembly-CSharp.dll' is denied.
at System.IO._Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalDelete(String path, Boolean checkHost)
at System.IO.File.Delete(String path)
at ETGModInstaller.ETGModder.Uninstall(InstallerWindow ins)
at ETGModInstaller.ETGModder.Install(InstallerWindow ins)
at ETGModInstaller.ETGModder.Install(InstallerWindow ins)

I've gone through the regedit, three separate restarts and reinstall to no avail

[gpere]

Try running as admin

[Weftin]

Tried that, same error

[gpere]

I know how to fix it; you need to go to an earlier version of MtG

…

On Wed, Aug 22, 2018 at 10:41 AM Weftin ***@***.***> wrote: Tried that, same error — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#45 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AboEcgMpSL3dqEu9uDRb1l0gNWYe0d68ks5uTZffgaJpZM4V_Ql0> .

[Weftin]

Attempted on v17.02.22.1, v16.12.16, and v16.07.24. Same error each time, how far back should I go?