Unable to load R3 module

[GeloMan]

Hi team,

I have updated my virtualbox when it prompted me that there is an update available for download below is the version that is installed in my Windows 7 64bit PC:

VirtualBox-4.3.20-96997-Win

I copied the error please see below:

Unable to load R3 module C:\Program Files\Oracle\VirtualBox/VBoxDD.DLL (VBoxDD): GetLastError=1790 (VERR_UNRESOLVED_ERROR).

Result Code: E_FAIL (0x80004005) Component: Console Interface: IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}

I cant load all my virtualMachines

For your assistance on this please.

Thank you, GeloMan

[GeloMan]

VBoxStartup.log

[Frank Mehnert]

You are using a modified version of uxtheme.dll. The modification invalids the signature and therefore VirtualBox does not trust this DLL and refuses to start. Sorry.