Refurb Z420 came with Win 10 (dislike). Installed Win 7 Pro 64 bit (UEFI install). Installed Nvidia Quadro 2000 driver v377.83 from Nvidia site (Seems to work ok but with occasional internet page crashes with fast scrolling). Bios up to date v3.94 RevA via HPQFlash. Would like to install HP recommended Nvidia driver v391.33 Rev B. Have uninstalled v377.83 and tried to install v391.33 Rev B with error message that hardware is not recognized. Successfully reinstalled v377.83. Would like guidance with v391.33 installation.
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