Clearing Address Book Cache

Steps to Clearing Address Book Cache

1. Open Outlook and Select File
2. Select Account Settings 
3. Select Data Files and Open File Location
4. Select Offline Address Books
5. Exit Outlook by select File and then Exit
6. Highlight the folders within the Offline Address Books Folders and Delete them.
7. Open Outlook

Downloading an Offline Exchange Address Book in Outlook for Windows

1. Locate the offline address book.
   • In 2007, from the Tools drop-down list, select Send/Receive.
   • In 2010 / 2013, under the File tab, click the Account Settings button.
2. Select Download Address Book.
3. Click OK.

Exchange Management Console: Disable and Remove

In the Exchange Management Console when a mailbox is selected the actions pane shows two tasks; Disable and Remove.

Exchange 2010 mailbox tasks: Disable and Remove

These two tasks do the following:

• Disable will remove the Exchange attributes for the user account but leave the user account in Active Directory.  The mailbox is then also left in the Exchange mailbox database until the retention period has lapsed, then it is removed permanently.
• Remove will remove both the Exchange mailbox and the user account from Active Directory

Unfortunately some admins wrongly assume that Disable is for temporarily disabling mailboxes, and that Remove will only remove the mailbox and not the user account.
If you’re having trouble remember the correct usage of these tasks think about it in terms of the Exchange Management Shell commands and how they pair up.

• Enable-Mailbox is for creating a mailbox for an existing user, and Disable-Mailbox removes only the Exchange attributes from the user account
• New-Mailbox is for creating a new AD user and mailbox at the same time, and Remove-Mailbox removes both the mailbox and the user object.

But if thats too hard just to try to remember that Disable is the safest option, because you can quickly reconnect the mailbox to the user again if it is still within the retention period.

How to List all Disconnected Exchange 2010 Mailboxes:

How to List all Disconnected Exchange 2010 Mailboxes:
The Exchange Management Shell lets us find the disconnected mailboxes in the organization.

[PS] C:\>Get-MailboxDatabase | Get-MailboxStatistics | where {$_.DisconnectReason -ne $null} | ft displayname,database,disconnectreason -auto

Disconnected mailboxes can be reconnected to an Active Directory user account. If no account exists for the person you want to reconnect a mailbox to then you would first create the account in Active Directory. Then you can reconnect the mailbox.

Restoring a User Mailbox after being Disabled

The following is a shortcut for restoring a mailbox in exchange 2010 that should work within 5 days or less
Procedure:
• Connect to a Mail Server and run the EMC(Exchange Management Console)
• Right click “Disconnected Mailbox” and select “View Exchange Management Shell Command Log…”
• Maximize the window to view all commands that have been run, and navigate to the Command example: 'domain.com/users/.../User Name' | Disable-Mailbox
• Now open the Exchange Management Shell, and paste the command in the Shell and change Disable-Mailbox to Enable-Mailbox and press enter.
• Now go back to “Mailbox” and refresh the list and confirm that the mailbox in question is back in the list.

Service Tag Finder

Open cmd as Administrator then run bellow command
wmic /node:192.168.1.17 csproduct get identifyingnumber

Get service TAG from Dell Pc

Obtain Service Tag locally with command line

In the command prompt type the following and press Enter/Return.
wmic csproduct get vendor,name,identifyingnumber

You can also use
wmic bios get serialnumber