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Citrix Studio and Storefront MMC slow on startup

October 27, 2021 by AJNI No Comments

If you are having problems with Citrix Studio and Storefront being very slow on load, this article might help.

On Studio/Storefront startup, Windows tries to verify code integrity by checking the certificate revocation list (CRL) on the internet. If the server has no internet connection, this will result in the MMC being basically unusable. To fix this, CRL checking can be unchecked in the Internet Settings (intetcpl.cpl):

References:

https://support.citrix.com/article/CTX139325

Reading time: 1 min

Bring a Windows Server’s disk back to life with these two commands

October 18, 2021 by AJNI No Comments

If you have the misfortune of having to troubleshoot and repair boot issues on a virtual machine after a physical host crash, these two commands might help you.

First of all, try to get into the advanced settings on boot (it should be the F11 key), or after a while Windows (Server or 10/11) might automatically go into the menu when it cannot boot from disk. Alternatively a Windows ISO image can be used.

Once in the advanced settings, run the good old checkdisk command:

chkdsk /f C:

After completion, restart the VM and check if you are able to boot. If the issue persists, try restoring the registry database (once again through the advanced settings or a Windows ISO). A scheduled task regularly backs up the registry and puts it the folder C:\Windows\System32\config\Regbak.

copy C:\windows\system32\config\RegBack\* C:\windows\system32\config

Restart the VM and check if you are able to boot into Windows. If you still have issues, you should consider restoring from a backup (it sucks but sometimes it is unavoidable).

Reading time: 1 min

Share a Microsoft 365 room mailbox with the web

October 11, 2021 by AJNI No Comments

If you need make a room mailbox public, for example for a public event, these few PowerShell commands will help you:

First, connect to Exchange Online with your tenant admin:

Connect-ExchangeOnline

Make the calendar public and make the calendar entries visible to everyone:

Set-MailboxCalendarFolder publicRoomMailbox:\Calendar -PublishEnabled $true

Set-MailboxCalendarFolder publicRoomMailbox:\Calendar -Detaillevel Full

Show the HTML and iCalendar URL:

Get-MailboxCalendarFolder publicRoomMailbox:\Calendar | fl published*

The URLs can be shared with anyone or the HTML URL could be embedded on a website as part of an iFrame.

Reading time: 1 min

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