I have a desktop and a laptop computer. I have W7 installed on the desktop and used to have WinXP Pro on the laptop. I was able to share the 1510 (which is connected via USB to the desktop) using the laptop over wireless connection. I just installed W7 onto the laptop and now I get an error message when trying to add the printer to the laptop. The error message I get is: "Windows cannot connect to the printer. some driver files are missing or incorrect. Reinstall the driver or try using the latest version." http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=al-75052-1&lc=en&dlc=en&cc=us&... Here is the link to the drivers that I installed. I believe it is the latest version. I also turned off Avast, Win Defender, & win firewall on both computers, but it did not help. One other thing: I am able to share files using either Homegroup or the old fashioned way - using the network connection. I hope there is a fix for this. Any ideas? Forgot to mention-both Win7 computers are 64 bit. The XP Pro was 32 bit.