virtualbox - How can I resolve the error "Callee RC: REGDB_E_CLASSNOTREG"?

I wonder what cause this error, I just run VirtualBox after installation, I tried re-installing, repairing, upgrading version, downgrading version. But this error keeps coming up.

Answer

According to this article, this can be fixed like so:

1. Open a standard command line ( Run > cmd )


2. Run: cd C:\Program Files\Oracle\VirtualBox


3. Run: VBoxSVC /ReRegServer


4. Run: regsvr32 VBoxC.dll

Make sure to run the Command Prompt as an Administrator.

But I find it confusing that this happens directly after installation. You may want to report this issue on the VirtualBox Bugtracker.