"Unlicensed Product" error when you open an Office Professional Plus 2010 application

Some times, when open any MS Office application like outlook, excel etc, i keep get following error irrespective of my license expired or not.

“Unlicensed Product” error when you open an Office Professional Plus 2010 application”

To fix the issue, i followed following steps.

Easy fix 51006

  1. Determine whether the computer has the 32-bit or 64-bit version of Office 2010 installed. To do this, open any Office 2010 program, click File, and then click Help. The Office version is displayed next to the Version number.
  2. Close all Office 2010 programs.
  3. Click Start, type cmd in the Start Search box, and then press Enter.
  4. At the command prompt, type one of the following commands, and then press Enter:
    • If you’re running 64-bit Windows with 32-bit Office:
      "%ProgramFiles(x86)%\Common Files\Microsoft Shared\OFFICE14\OSAUI.exe" /F
    • If you’re running 32-bit Windows, or running 64-bit Office with 64-bit Windows:
      "%ProgramFiles%\Common Files\Microsoft Shared\OFFICE14\OSAUI.exe" /F

You can can find more help or ways to fix this issue from this MSDN help link.

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