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HP PageWide Pro 577dw Multifunction Printer
Microsoft Windows 10 (64-bit)

Been browsing the forums and things have gone from bad to worse. Can't get either basic driver to install for PageWide Pro MFP 577dw or  LaserjetPro 400 M451dw. Both on wireless private network. . Installation error: C:\Program Files\HP\HP Pagewide Pro 577 MFP\DriverStore\StanleyV4\hpmaD5114+64.inf': A caller of DriverPackageInstall must be a member of the Administrators group to install a driver package. I am the admin on my computer and have been launching the installer as the admin. Any suggestions? Thanks!

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