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Author: Marty
New Microsoft Sentinel install? Keep these three points in mind.
Throughout the past year, I have collaborated with numerous customers who were new to Microsoft Sentinel. In this post, I will share three key points that all new Sentinel users should be aware of. These points are per Sentinel installation and relevant even if you have a complex, multi-workspace architecture. #1 Use a brand new…
Add a Microsoft 365 E5 trial to your tenant
If you need to do some testing on M365 products, like kicking the tires on Microsoft Defender, you can add an E5 trial to a tenant easily (or create a tenant first if you don’t have one). I already have an M365 tenant with an O365 Business license for e-mail purposes. Here, I am going…
Cumulative Update Prerequisites Can Bite You
In my previous blog post, I wrote about adding cumulative updates to a Windows image. While doing so I smashed my head into a wall for a while figuring out that I was missing a servicing stack update. And if you don’t install that first, the cumulative update won’t actually install into the image. The…
Add Monthly Update to Your Windows Image with PowerShell
If you “burned” a Windows 10 or Server edition ISO onto a thumb drive (for example using Rufus or the Microsoft media creation tool), or if you just have an install.wim on a network share that you want to refresh with a monthly cumulative update, here’s a quick way to do it. The Steps! In…
SSL with WSUS: You still need Port 8530
I thought I’d share a nugget of information that proved helpful when troubleshooting WSUS Windows Update issues. And this also serves as a reminder that sometimes you have to go back and read the manual. I had a client machine that was configured properly to use my intranet WSUS server over SSL, and the WSUS…
A look at DISM image cleanup commands and consequences
For some time, I’ve followed a documented practice when managing my operating system images. That practice is to perform a cleanup before capturing the final WIM file. There are a few things you can do for the disk cleanup, but most commonly use of DISM /resetbase and /startcomponentcleanup yield considerable savings in the size of the…