I need to find a driver for HP Photosmart C6283 for my laptop cause i can't install it to windows 7 ultimate... and the message error is "The software is not compatible with the OS" Please help me to fix this problem.

Hello Lois,

Try downloading the driver and re installing it
http://h10025.www1.hp.com/ewfrf/wc/product?cc=us&lc=en&dlc=en&product=3204785

This may solve the issue.

Thanks!

Check with HP for a Windows 7 driver for the printer. HP Ink Jets require proper drivers to work correctly. Once you have downloaded and installed the drivers try connecting again.
If you have installed the drivers and Windows 7 still refuses to "talk" to the printer, you may have to adjust your advanced network settings as well. Open up the Network and Sharing center, click on advanced sharing settings and make sure file and printer sharing is turned on. Also check "File Sharing Connections" and enable file sharing for devices that use 40 or 56 bit encryption.
If that fails to work you may need to speak with HP support for further assistance.

Here's a solution for that printer. Click here to view the solution. I am an HP employee. I do not represent HP on this site.

Have you tried a different cable?

HI there,
You need to install the correct driver for your printer, this problem occurs when you try to load 32 bit drivers on 64 bit windows edition, To download the drivers click on the link below, it will download the full driver and software for your printer,
HP Photosmart Full Feature Software and Drivers
After downloading, run the setup file and follow the on-screen instructions to install drivers,
If you require more assistance feel free to reply to this post,
Thanks for contacting FixYa!
Regards, BA

Incompatible types and version of printer drivers when installed in Windows 7 can cause issues which might hinder the installation process thereby causing the installed drivers to become corrupt. The users of Windows 7 are therefore advised to verify the version and type of printer drivers before the installation and install only those drivers that are fully compatible with the Windows OS on the system to avoid these kinds of issues.

http://social.technet.microsoft.com/Forums/en-US/itprovistaprinting/thread/f9c40046-0de0-42d8-bb3c-4b56f8e404d6

There are 9 different HP Photosmart C4400 All-In-One devices. The Windows 7 driver is available on HP website [www.hp.com]. Select "Software & Driver Downloads". If you are running Windows 7 you will need to select either the 32bit or 64bit driver. If you are still having problems, write back. -- SWT

Issue :The Operating System on This Computer is Not Supported' Message Displays on The Computer in Windows 7 When Installing the HP Software for a USB Connected Product
Solution
Download the drivers for the product
HP Photosmart C3180
USB Drivers for Windows 7 for HP Photosmart C3180 All-in-One Printer

check this link for more details

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01912256&cc=us&lc=en&dlc=en&product=1146331

1. Go on HP website
2. Go the Support and Drivers
3. Select Download drivers and software (and firmware)
4. Type in Photosmart C4480
5. Select Operating System "Microsoft Windows Vista"
6. Select HP Photosmart Full Feature Software and Drivers
7. Click "Download Only"
HP Photosmart Full Feature Software and Drivers
HP Photosmart Full Feature Software and Drivers

Delete the drivers on the laptop, then download from:

http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=2093&lc=en&dlc=en&cc=us&product=441242

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309