Me too. "VMWorkstation has stopped working" crash after following the built-in upgrade notification. Running Windows 8.1 64bit. I'm downloading VMWare 10.0.3 from the MyVMware account, but I can't find anywhere to download the previous working version 10.0.5. Any ideas? Hope the 10.0.5 VMs are backwards compatible with 10.0.3. Can't do any work until this is resolved!