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- HP Community
- Printers
- Printer Setup, Software & Drivers
- Printer driver won't install

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06-09-2026 12:04 PM
The driver for my Envy 5055 printer won't install on my HP laptop running Win 10 64-bit. The driver works on my other computer. I re-downloaded it from the HP driver page, but it still won't install. In both cases, I get the following error message: DLL _1sUser2.DLL failed to load. Any suggestions?
06-10-2026 05:06 AM
Hi @shanafeg
Please follow steps from the next message to remove old printer driver in your Windows system:
Then install again the printer driver:
* Click YES to say thank you,
* Click Accepted as Solution when question is answered.
Best regards,
ferRX.
dodecaedroh.gif
06-10-2026 02:27 PM
Thanks for the advice. Unfortunately, after following your suggested steps, I got the same error message which aborted the installation, namely DLL -lsUser2.DLL failed to load. Is this DLL part of the installation program? Any idea why it fails to load?
06-12-2026 03:20 AM - edited 06-12-2026 03:22 AM
Hi @shanafeg
This is related to a temporary file used during installation.
- Please follow the next steps to Clear Windows temporary folder.
Clear the Windows Temp Folder
The _isUser.DLL files are temporary installer files.
If your Temp directory has restricted permissions
or a corrupted cached version of the file, it will fail.
Press Windows Key + R to open the Run dialog box.
Type %temp% and hit Enter. This opens your local Temp folder.
Press Ctrl + A to select everything, and press Delete.
(If some files say they are in use, just click Skip).
Restart your computer.
Right-click the original HP file installer downloaded, and select Run as administrator.
* Click YES to say thank you,
* Click Accepted as Solution when question is answered.
Best regards,
ferRX.
dodecaedroh.gif,./