Suddenly my Office Professional Plus does not work. I try to reload, it asks for my licence key which is accepted. When I progress to install it again asks for my licence but says it is not a valid licence key?

My key is: [Removed product key]

Please help

• Edited by Melon Chen CHNMicrosoft contingent staff, Moderator Tuesday, July 14, 2015 3:04 AM removed product key