Could not load file or assembly 'Sonarr.Host'

Sonarr version (exact version): 3.0.2.572
Mono version (if Sonarr is not running on Windows):
OS: Windows 10 Pro
Debug logs:
Description of issue: Unable to start windows service. When starting the service i get the following error.

Unhandled Exception: System.BadImageFormatException: Could not load file or assembly 'Sonarr.Host, Version=3.0.2.572, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The module was expected to contain an assembly manifest.
   at NzbDrone.Console.ConsoleApp.Main(String[] args)

From Event Viewer

Faulting application name: Sonarr.Console.exe, version: 3.0.2.572, time stamp: 0x5d4da887
Faulting module name: KERNELBASE.dll, version: 10.0.18362.239, time stamp: 0xe665f337
Exception code: 0xe0434352
Fault offset: 0x00113442
Faulting process id: 0x8c0
Faulting application start time: 0x01d551621eeeea9e
Faulting application path: C:\ProgramData\Sonarr\bin\Sonarr.Console.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 5cd6f2d3-e631-491b-b943-9db9b547d2e7
Faulting package full name:
Faulting package-relative application ID:

Did your anti-virus remove that file?
Or possibly a failed update (check the update logs)?

Grabbing the latest release of the v3 beta from sonarr.tv is probably your best bet to solve it ASAP.

File was there but probably the wrong version. Took backup and uninstalled completely, then reinstalled. Restored backup configs and db files and its back running again. After reinstall i had to change the service properties to use local account for it to detect some folder paths.