Forum Discussion
BrittanyN
Jan 09, 2026Copper Contributor
Classic Outlook Keeps "Not Responding" and freezing
Hi there, I tried to scour for something similar, but I couldn't find anything and/or it didn't work - so here I am - hopefully someone can help. Okay the facts - I use Classic Outlook (CO movi...
steveo8091
Jan 27, 2026Copper Contributor
Well guess what??? Microsoft did another cumulative update including KB5074109 with coding that does not allow the update to be deleted. And now I have no CO! Again! Any suggestions?
mrjgreen
Jan 28, 2026Copper Contributor
Is that what the deal is??? My classic outlook is broke again!
- Imanindependent1Jan 29, 2026Copper Contributor
Uninstall KB5074109 and MS CO will work again.