Hi, the full feature software for you're officejet is 311.67MB. You can find the drivers on HP's site for Win XP by clicking on this link. http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=228&lc=en&cc=us&dlc=en&product=3198092&lang=en
You can order the CD from this same site above if you wish.
If you wish to choose another operating system click here.
How to get this software installed into to my system? And how to get the software copied to you're USB stick?
Once the software has been downloaded to you're computer you do not need to copy it to you're USB stick. You can always go back to HP's web site & download the software drivers at any time. (I'll list instructions anyways).
Right click once on you're desktop (in a non used section of the desktop background), & left click on New, slide to & click Folder. You have just created an emty folder on you're desktop. Now right click once on the New Folder & slide to & left click rename, type the name, HP Officejet. Click on the link above that matches you're current operating system. When you click on,
HP Officejet Pro Full Feature Software And Driver a window will open to another window. Scroll down the page untill you see,
Download only. Click the back button once. Another window will open, click Save. Another window will open, find the folder you created on you're desktop, open it & save the file named OJProL7X00_Full_8.exe into you're folder. Do not allow HP's name of the software fool you into thinking this is not the correct software for the HP Pro L7300. This is the correct web site & the correct file. The HP driver software is compressed into one .exe file. If you have you're USB stick plugged into the computer you can right click once on the HP Officejet folder & left click copy.
(The download of the file must be completed first).
Find you're USB stick Right click on the drive letter & left click past. You have now saved the HP Pro software folder to you're USB stick. You can open the folder on you're desktop & double left click the file named, OJProL7X00_Full_8.exe It will begian to install the printer software drivers. Please use you're manual to help with setting up the printer.
I hope you find these instructions helpful!
If you have more questions, feel free to ask & I'll help you futher.