I hope this helps others as I have fixed the problem I had. Please read.
I had the problem of being unable to access any of the Microsoft Office 2013 products upon installing the latest Windows 7 update for June 11, which was very frustrating as it is my work laptop. This came into effect after the system rebooted to install
the updates. When attempting to open a Microsoft program, a Microsoft pop up said to try a quick fix/repair which did not work and brought me to this forum.
I proceeded to restore windows to before the update (May) by opening the control panel-system and security-backup and restore and selecting recover system settings. I thought this would work but it did not. I then restored Microsoft Office to a previous
update in May by right clicking Microsoft Office from the Windows start button-programs-Microsoft Office and selecting the Previous Versions tab and selecting an earlier version (I chose June 9 as I know it worked then) and clicking restore...... This still
did not resolve the problem! I restarted the computer between each step to ensure the changes would take place (if they worked).
I then tried another idea (which worked for me). I opened the control panel-uninstall or change program-right clicked Microsoft Office and select change-online repair (previously I had tried the quick fix, so i thought what harm can an online repair do!)
It took about 15-20 minutes but I knew it was a step in the right direction as the Microsoft Office logo appeared on the screen. It said it was loading and in the bottom right corner said that office is installing in background and that I had a slow connection.
After it finished i tried to open an office program at alas it opened! I had to enter my product key to prove it was licensed (I couldn't remember the email and password). It all seems to be working fine now. At no point did I uninstall any programs. I think
i will turn off the Microsoft Office updates until i know there is a fix, this has taken me nearly my whole work day to fix. I hope this works for others too! Please let me know if it helped.