Just installed this driver on a Windows 8.1 system for the first time myself and it worked fine. One thing you will need to do is to turn off the verify driver checking or you will get a HASH error.
The procedure for doing this can be found here…
Note too that you may have to turn off SecureBoot in your system BIOS to carry out the steps detail above. This can be done by following the steps detailed at…
Once these are done you should install the driver in the normal manner using ‘have disk’.
This is one for small businesses using the Hewlett Packard DesignJet 450C plotter.
With many small businesses moving to Windows 7 64 bit, those with this large format plotter will find themselves let down by HP as there is no official 64 bit driver for the device.
After trawling through reams of forum info it appeared that the only solution was to use the 430 designjet plotter driver which worked but only in black and white / greyscale. However, I did eventually find a solution thanks to user jdm13 on the HP forums.
jdm13 has produced a modified driver that provides colour support for the DJ 450C in 64 bit. You can download this from here:
Update 7/5/13: Just checked the link above and it is still working so try there first.
If no luck then as I’ve mentioned elsewhere in this post drop me an email.
I don’t understand why HP have not produced a 64 bit driver (although I can guess) for the DJ450C but this third party driver does the job which could make a big difference to a small business as it means they can continue to use their old plotter.
I had a few problems getting to the driver as it kept reporting the page was missing. Eventually though this problems seemed to be resolved. If you can’t get to the driver at the link then contact me via the from on my web site www.litespc.co.uk and I will email it to you.
Update 7/5/13 from user Jeff Anderson
I had the driver but, thought it was buggy because I kept getting a corruption error when I tried to install it in windows 8. But, I learned that I just needed to temporarily turn off Integrity checks and it loaded fine.