If you need to delete the original printer driver, before reinstalling the driver, please be sure to uninstall the driver, so as to avoid printer errors caused by the repeated installation of the driver.
Windows 7/10/11
Go to "Control panel" -> "Devices and Printers"
(Right click on "This PC", choose "Properties", then click on "Control panel"-> "Devices and Printers" Or to search control panel).
Click "Uninstall a program"
Select "LabelDriver_GFLP801 Verion 1.0.1.2"-> Click Uninstall-> "YES"
-> Click "View Devices and printers"
-> Select "GFLP801"-> choose "Printer properties"-> Device-> GFLP801-> "Remove"-> "OK"
And Reinstalled Printer Driver (Please refer How do I install Driver on Windows?)