By default, Microsoft Windows Server 2012 enforces users in the Administrators group to use strong passwords. Home users often just want to create their own passwords or leave them blank.
1. Open the Start screen and click the Administrative Tools icon.
2. In Administrative Tools folder, pharmacy double click the Local Security Policy icon, d expand Account Policies and click Password Policy. In the right pane double click Password must meet complexity requirements and set it to Disabled. Click OK to save your policy change.
3. Optionally you can also choose to never let passwords expire. To do this open the Maximum password age policy and set set the value to 0. Click OK to apply the change.