Have been receiving this error message for 2 days when trying to activate Office 2013. 

Please note that I do not have the option to run Office as Administrator.

Hi,

The suggestion I would like to provide was to run Office as administrator. By "I do not have the option to run Office as Administrator", did you mean you couldn't see the option or something else?

To run an Office application as administrator, we need to find the application shortcut, right click on it, then click "Run as administrator".

For the error message you provided, I also suggest you run the System File Checker to run the sfc /scannow command to scan all protected system files and replace the incorrect versions with the correct Microsoft versions.

For a Windows 7 PC

1. Click Start > All Programs > Accessories, and then right-click Command Prompt and choose Run as administrator.
2. In the command prompt, type sfc /scannow and press Enter.
3. When the system scan is complete, try to install Office again.

For a Windows 8 PC

1. Swipe in from the right edge of the screen, and then tap Search.
(If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Search.)
2. Enter command prompt in the search box.
3. In the list of results, swipe down on or right-click Command Prompt, and then tap or click Run as administrator.
4. In the Administrator: Command Prompt window, type sfc /scannow press Enter.
5. When the system scan is complete, try to install Office again.

I hope the information is helpful.

Melon Chen

Forum Support