Setup Cant Continue PowerShell Has Open Files
KB ID 0001633 Problem While attempting to uninstall Microsoft Exchange server; Setup can’t continue with the uninstall because the powershell (PID) has open files. Close the process, and then restart setup. Solution Seems to be a common error, and is usually caused because someone has the Exchange Web Management page open, (probably in another user session); In some cases you may need to reboot, but in my case I was simply being...
The Term ‘Uninstall-WindowsFeature’ is not Recognized
KB ID 0001628 Problem I was removing Windows Defender from a lot of servers that had just been deployed, (while doing and AV rollout). So I had a remote session open to all the servers and issued the command on each one, and moved onto the next one. when I went back, about three or four of them had failed with the following error; PS C:\Users\Administrator> Uninstall-WindowsFeature -Name Windows-Defender Uninstall-WindowsFeature :...
PowerShell: Find Computers Last Logon Date
KB ID 0001612 Problem I had to find the last time a particular server had logged on for a client the other week, so we knew for sure it was dead! Solution The two commands you may need are; Locate Servers Last Login Time Get-ADComputer -Filter {OperatingSystem -Like ‘*SERVER’} -Properties lastlogondate,operatingsystem | Select name,laslogondate,operatingsystem Locate Clients Last Login Time Get-ADComputer -Filter...
Hybrid Exchange: ‘Mailbox Delegation’ Missing?
KB ID 0001607 Problem This was asked on EE this morning, if you are on a Hybrid Exchange environment then you cannot allocate Mailbox Delegation to an Office365 mailbox; However you can add ‘Mailbox Delegation’ to a ‘local mailbox’. This is completely normal behaviour, to allocate mailbox delegation permissions to your Office 365 mailboxes, you need to use PowerShell. Managing Mailbox Delegation Permissions in...
PowerCLI: Connect-VIServer Certificate Errors
KB ID 0001603 Problem When attempting to connect to a vCenter or ESXi host, you see the following error; Connect-VIServer : {Date} {Time} Connect-VIServer Error: Invalid server certificate. Use Set-PowerCLIConfiguration to set the value for the InvalidCertificateAction option to Prompt if you’d like to connect once or to add a permanent exception for this server. Additional Information: Could not establish trust relationship...
Forcing Azure AD Connect Sync
KB ID 0001590 Problem If you are using Azure AD Connect, (AAD Connect) to sync your on-premise Active Directory with Azure AD (i.e. for Office 365), then there may be times when you need to manually ‘force a replication’ because by default it’s going to take 30 minutes between each normal ‘delta replication’ Solution If you are directly on the server that’s running Azure AD connect, then use the...