Changing the SharePoint 2010 Admin Password in Window Based Authentication Mode

(Changing the Password without configuring the steps for services below will cause “Service Unavailable Error” while “Page cannot be Displayed Error” if AppPool is not started.)

It is caused because either the password for the farm admin has expired or the user had changed the password.

1.      Change the Admin Password by Pressing Alt+Ctrl+Dlt -> Change a Password

2.      Go to Run -> Services.msc or Start -> Administrative Tools ->Services

3.      Go to the Services that use that admin account as log on

4.      Change the Password of all the Services using that account

5.      Restart the service if it was running already or if you want to start it.

6.      Go to IIS Manager ->Application Pools

7.      For each application pool running with the admin account
8.      Set the Password for admin

9.      Repeat the process for all the App Pools

10.  Reset IIS Web Server from cmd -> iisreset –noforce or restart it manually.

Here you go .....