"Office 2008 SP1 Update (12.1.0) can't be installed because its digital signature is invalid."
Any ideas on why I continually get this message when trying to update Office 2008 for Mac? I have installed Office 2008 for Mac(version 12.0.0)from the original disk on a new iMac computer . I want to update to version 12.3.6 but need to update to versions
12.1.0 and 12.2.0 first. I have downloaded version 12.1.0 several times and always get the above message when I try to install the update.
Here's what I have to do to get Office 2008 updated. I have a MAC mini, came with Mavericks. I installed Office 2008 (but did not do any updates) then upgraded to Yosemite. Then I tried to run the updates for Office 2008. I got the same error messages
like other people have. Thanks to some of the notes from other Users, I did the following.
1. Roll the date back to year 2010 (i think day and month does not matter).
2. Disconnect Internet cable or disable WiFi
3. Install update Office2008-1210 (Then change the date back and reboot the machine)
4. Install update Office2008-1220
5. Finally install Office2008-1236
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