Q: We have switching our Exchange server to another one, but the autodiscover keeps reverting back to the old server. Is there a way to fix this?

A: You can manually bypass the Microsoft Exchange settings. (Below was tested on Exchange 2010 and 2013.)

Adjust the following registry settings. Depending on your version of Microsoft Office the number between "Office" and "Outlook" will change. For example, in Outlook 2007 it is 12.0, for Outlook 2010 it is 14.0, for Outlook 2016 it is 16.0:

On some occasions, when accessing an Remote Desktop Server that gives out licenses based on devices, you may get this error:

Error: The remote session was disconnected because the Remote Desktop client access license stored on this computer has been modified

You can fix this using the following steps:

If you need to manipulate (rename, move, etc) files in a windows batch, here are useful variables that can help with that:

Q. I would like to copy some data from a shadow copy image, is there any way that I can access it as a drive or directory (mapped or mounted)?

A. Yes, this can be achieved in the following steps:

Open command prompt and run:

vssadmin list shadows

This will produce the following output:

If you are trying to run an RDS server in a workgroup, you will most likely run into this error:

"Remote Desktop Services will stop working in 120 days if this computer does not contact at least a valid Windows Server 2012 license server. On the RD connection Broker server, use Server Manager to verify or configure licensing settings."

and 

"Remote Desktop Services will stop working because this computer is past grace period and has not contacted at least a valid Windows Server 2012 license server. Click this message to open RD Session Host Server Configuration to use Licensing Diagnosis"

or variations of above. 

Microsoft has simplified the process of removing a mailbox from quarantine starting with Exchange 2013. (Before it was a more complicated process, involving registry edits).

Keep in mind that Exchange quarantines mailboxes for a reason. It tries to correct a problem automatically, but if it fails, it will quarantine the mailbox again, so the root cause of the problem needs to be identified.

First, you need to find which mailbox was quarantined. Open Exchange management shell and run the follow codelet:

 C:\Windows\SoftwareDistribution

With the bigger disks that are no longer supported by MBR there's a constant need to convert to GPT.

We have done this using a live disk, however, it is always important to create system backups. The disk was 6TB, with 2 smaller live partitions. Without converting to GPT we could not take advantage of the entire disk capacity. Assuming that the disk is /dev/sdb (the first 2 partitions are /dev/sdb1 and /dev/sdb2). Below instructions are not for a bootable disk, rather a secondary partition.

On occasion you may get a nasty error like this (BadCRC generally means bad sectors):

[4530467.649165] ata2.00: exception Emask 0x10 SAct 0x60000000 SErr 0x280100 action 0x6 frozen
[4530467.649608] ata2.00: irq_stat 0x08000000, interface fatal error
[4530467.650043] ata2: SError: { UnrecovData 10B8B BadCRC }

But the problem is mapping the drive ata2 to an actual disk drive device. This can be achieved by running this command: