removing old office version AFTER installing update

[Cazale]

Hey all,

 

I think I messed up when installing Office 2013 (from Office 2010). I deliberately didn't uninstall old office versions, thinking if I left the old version and any users had a problem I could point them back to O2010.

 

In hindsight, this seems like a bad move. I've tried various ways of removing Office 2010 post Office 2013 install, including a manual uninstall, the remove office script (extracted from an exe), etc. Doing any of these seems to break the link between Office documents and Office 2013, so Office documents refuse to open. Weirdly, trying to open a (e.g.) Word document starts Office 2013 installing again, even though it's already installed!

 

The seemingly obvious thing to do would be to edit the MSP to uninstall old Office versions and then deploy again, but (as I built the key into the setup) I'm thinking this will double the number of keys used over the two deployments (obviously something I'd like to avoid doing!)??

 

Any suggestions?

Edited April 4, 2016 by Cazale

[3s-gtech]

You'll probably find that removing Office 2013 necessitates a partial reinstall of Office 2013 (as you're seeing when you open a document and the progress bar appears). AFAIK there's no way round this - the uninstall process for 2010 leaves 2013 incomplete. Can you implement a KMS server for Office to save your key count?

[bald_pig]

This stops the configuration when switching between office 2010 and 2013:

 

reg add HKCU\Software\Microsoft\Office\15.0\Word\Options /v NoReReg /t REG_DWORD /d 1