Microsoft Office 2013 Professional Plus. [SOLVED]

I open the zip folder. Click AutoRun. It starts unzipping or extracting. A microsoft office window opens asking if i want to install now. I click install now. I get the following error message:

Please wait.
We're sorry. It looks like another installation is running. Please wait until it's finished and try installing Office again.
If you see this message again, please restart your computer and then retry installing.


Any help much appreciated!

//EDIT


Oh, also should have said: I have tried restarting lots obviously. Also when I exit the microsoft office window with the above error message, I then get this crash message message:
Microsoft Setup Bootstrapper has stopped working.

Hello,

Please restart your PC first. (To close all running setups)
Now, extract the .rar file you downloaded, using only WinRAR. You can download WinRAR from www.games4theworld.org .
After extracting it, open either the "x86" or the "x64" folder, depending on which version you want to install.
Look for a file called "Setup.exe" and double-click it once. It might take a while to open, but that's OK, just be patient and only double-click once.

Run the setup and see if it works now. Good luck!

Ps. Remember only to use WinRAR for extraction, and no other software like WinZIP or 7ZIP.

All perfect. Thank you!


Mod edit: problem solved, topic closed. Have fun !  

- Carlos