HP 255dw laser jet fails to install on PC

I did not notice my error before.
I've deleted my irrelevant posts.

The download from the 255 webpage matches the filename you posted before.
It seems to be 151MB, a software package in its own right so I don't know why it's redirecting you to HP Smart.
What HP entries are in the Start menu? [Mine just has the Iris OCR software that is part of the printer's full software package that I download from my HP page for my 477 model.]
What HP entries are in Control panel, Devices & printers, Printers section? [This is where my printer shows up & where I'd expect yours to show up aswell.]


Denis

yertiz said:

The only HP item in the start menu is HP Smart.

yertiz said:

The only enytries in controlpanel/printers are Fax, Microsoft Print To PDF, Microsoft XPS Document Writer, OneNote for Windows 10 and my old M252 printer. The 255 does not appear.

yertiz said:

I downloaded file Full_Webpack-44.11.2784-LJM255-M256_UWWL_Full_Webpack(1).exe which is I believe the full software

yertiz said:

I can no HP entries in program files ...

I assume you checked both C:\Program files and C:\Program files (x86).
It seems to me that the software crashed and did not complete the install.


Denis

Is your printer software listed in Control panel, Programs & features?
If not then [I'm guessing] a utility such as Revo uninstaller might be able to remove the debris that makes it think it was installed before.
I've never used it myself but kept this link About Revo Uninstaller - Paul Black post #3 - TenForums

In your previous attempts, did you run the installation as Admin?
For all I know, it has a just-for-this-user installation mode [that crashed anyway] that would not need to be elevated so running as Admin would ensure a 'normal' installation was attempted.
Perhaps it left debris in
C:\Users\%UserName%\AppData\Local\HP

I do have one further idea but it might be a waste of time.
- Backup your drivers, then
- Note the paths of the backup folders that start with HP, then
- In each of those folders, read the *.inf files to make sure they mention your printer model number 255, then
- Use the Restore drivers procedure to restore just those paths that do mention your printer model number.
Backup and Restore Device Drivers - TenForumsTutorials
My thoughts being that reinstalling the drivers this way will give Windows a second chance to install them correctly.



All the bets,
Denis

yertiz said:

Is it possible that Add Device doesn't have permission to access Windows\System32\DriverStore\FileRepository which is where the M255 drivers are located?

That would be a Windows fault for which SFC and, if necessary, a Repair install would be worth a try.
SFC - TenForumsTutorials
If SFC reports irreparable errors, do read the notes at the end of Option 3 for the Dism cmd to run whilst connected to the internet.


Denis