HP LaserJet Pro 400 Printer M401 series - Manual (Page 139)

Remove software (Windows)
Windows XP
1. Click Start, and then click Programs.
2. Click HP, and then click the product name.
3. Click Uninstall, and then follow the onscreen instructions to remove the software.
Windows Vista and Windows 7
1. Click Start, and then click All Programs.
2. Click HP, and then click the product name.
3. Click Uninstall, and then follow the onscreen instructions to remove the software.
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