stc

In simple terms:

Once resolved, take these proactive steps:

The “access denied” means .

: Antivirus or firewall software can block driver installations. Temporarily disable any third-party security suites before attempting the installation again.

You verify igfxEM.exe is 64-bit. Good. The problem isn't WOW64.

Corrupt driver installations are a leading cause. Reinstall with a clean slate.