Take Caution when upgrading WIN7 BUILD 7077

I recommend you take caution before upgrading to Windows 7 build 7077. Ensure you have a full back up of your data files.

I upgraded build 7022 t0 7068 with no problems and then I upgraded to build 7077 and I found that all the file security permissions on my D: data drive had been stripped off and corrupted rendering my system unusable.

See here.