You can Prevent User to delete Printer in Windows 7. Suppose you are a system Administrator and your system is public access by many user. if you are face a problem that Printer deleted by user again and again then you can restrict user to delete printer in windows 7 via Group Policy
Prevent User to delete Printer
1. Click on Start button , then Type gpedit.msc and Press Enter .
2. In the Local Group policy Editor , Navigate User Configuration => Administrative template => Control Panel => Printers , then on the Right pane Double-click on Prevent deletion of printers
3. Click on Enable radio button , then Click on Apply then OK.