Changing Password in SharePoint 2013 by powershell

Follow these steps to change the password for SharePoint :
 

·         Open up the SharePoint PowerShell command prompt
 

·         Set-SPManagedAccount - UseExistingPassword -Identity DOMAINA\SPSAdmin
 

·         Where DOMAINA\SPSAdmin is service account that had it's password changed in the AD
 

·         You will then be prompted for the existing\new password for "DOMAINA\SPSAdmin"
 

·         Run "Repair-SPManagedAccountDeployment" to verify
 

·         the passwords are now in sync •Next do an IISRESET command
 

·         Run Repair-SPManagedAccountDeployment to verify that you do not get this message: Repair-SPManagedAccountDeployment : The password for the account DOMAINA\spsadmin, as currently stored in SharePoint, is not the same as the current password for the account within Active Directory. To fix this with PowerShell, run Set-SPManagedAccount -UseExistingPassword
 

·         the Set-SPManagedAccount -UseExistingPassword command will update the config database and service using by this account.