Offboard inactive computers from Microsoft Defender ATP

If you forgot to offboard devices from Microsoft Defender ATP here is a quick guide to offboard them using the Defender API. MS’s defender api uri: api-eu.securitycenter.microsoft.com Head to https://security.microsoft.com Click on API-explorer In API-explorer enter f.x: or f.x this below to also filter on a specific state. This will list all your machines where …

Issues with proxy server cetificate – Exchange 2016

Lately I went into an issue where users recieved a dialog box in outlook saying, there is a problem with the security certificate; The customer is running on Exchange Server 2016 and is using a Kemp Loadbalancer. This MS article; https://support.microsoft.com/da-dk/help/923575/error-message-when-outlook-tries-to-connect-to-a-server-by-using-an-rp states that there is a problem with the security channel Finnaly I  found this …

Office 365 Migration

Greate cmdlets to use during exchange migration This powershell cmdlet requieres that you are connected to exchange online. It will list the status of all mailboxes beeing synced. Another cmd-let that gives some more detailed look Replace emailaddress Complete single mailboxes during migration; Get a list of all mailboxes incl. totalitemsize og mailbox type; Remove …

Can’t install windows feature – Error; 0x800f081f

I went into C:\windows\logs\cbs.log and found the following entry; Store corruption, manifest missing for package: Package_1379_for_KB4025336~31bf3856ad364e35~amd64~~6.3.1.4 Mark store corruption flag because of package: Package_1379_for_KB4025336~31bf3856ad364e35~amd64~~6.3.1.4 After a lot of troubleshooting i found the solution; Go to windows catalogue and download the KB. extract the kb with the following command; After the extraction install with dism;