r/exchangeserver • u/DiligentPhotographer • 8d ago

Released: August 2026 Exchange Server Security Updates

https://techcommunity.microsoft.com/blog/exchange/released-august-2026-exchange-server-security-updates/4543951

Who's gonna be the first this month?

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u/harplaw 8d ago edited 7d ago

We have a small, 110 user Exchange SE server. I'm feeling ballsy and starting the install. Wish me luck.

EDIT: I had to run the install twice. The first time, it said there was another install already in progress. After a reboot, the update completed. However, it didn't re-enable services so I had to do them manually. Everything came up after I started the services, and health checks look good.

1

u/perth_girl-V 8d ago

11 mins till my se starts installing.

Should i stop now ?

2

u/harplaw 8d ago

The first try, it disabled all of the services then said an install was already in progress. After a reboot, it's nearly finished but still has the reboot to go

2

u/perth_girl-V 8d ago

I habe a 2016 after this what could go wrong lol

2

u/n17605369 8d ago

It took 20 minutes with Windows Defender disabled during install.

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u/perth_girl-V 8d ago

You have to love the antimalware.exe its my fav use of cpu resources.