Hi
Always run installation files "As Administrator"
Copy Update Files to SimCity folder: Go to Program Files (x86)\Origin Games\SimCity\SimCityUserData\Patches\UpdatedApp Select all files (Ctrl-A) and copy (Ctrl-C). Go to \Program Files (x86)\Origin Games\SimCity and paste (Ctrl-V). Choose to overwrite any files that already exist.
If you still have the problem, please reply back with a copy of your dxdiag.
To post your DxDiag:
1. Select the 'Choose file' button below the post box
2. Find the DxDiag file and select it - hit Open
3. Add text to your post and hit Submit