Affected users usually see the “Fatal error / MSI.netdevicemanager40” in the preliminary stages of their HP printer’s installation. The “Fatal error / MSI.netdevicemanager40” error is one that can leave even the most experienced HP printer users confused as to what they should do next, although this error is not at all unfixable. If you are suffering from the “Fatal error / MSI.netdevicemanager40” error and want to fix it, here’s exactly how you can do so:

Phase 1: Clear your computer’s temporary files

Press Windows Logo + R to open a Run Type %temp% into the Run dialog and press Enter.

Press Ctrl + A to select all of the files and folders in your computer’s Temp Press Delete. Confirm the action in the consequent popup. If some temporary files are in use, you will have to skip them during the deletion process.

Phase 2: Download and extract the software and drivers pack for your printer

Go here. Type your printer’s exact model number in the Enter my HP model number field and click on Find my product. Click on your HP printer among the search results on the next page. On the Software and driver results page for your HP printer, click on the Download button in front of the Full Feature Software and Drivers for your printer under the Driver-Product Installation Software As soon as the software and drivers package has been downloaded, navigate to it and double-click on it to launch it and begin the extraction of the package. When the drivers and software installation window pops up, wait for a couple of seconds and then click on Cancel.

Phase 3: Move the extracted package from your Temp folder to your Desktop

Phase 4: Uninstall any and all HP printer drivers and software

Phase 5: Run Disk Cleanup and install the latest version of Adobe Flash Player

Once your computer boots up:

Phase 6: Install your HP printer

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