Scanning I cannot find the disk to reinstall the scanning option. Can you help?

control panel admistrive tools,computer management,device manager scroll down universal serial bus controllers you should see a yellow question mark? right click to reinstall drivers or ports(com&lpt)right click update driver or scroll to disk drives if you can see your drive + to expand right click you should see options to update driver,disable,uninstall scan for hardware changes. or select properties you should see options in the general tab to troubleshoot,policies,volumes,driver and details under the driver tab you will have the options to check the driver details,update driver,rollback driver or uninstall
hope this helps

When you scan a picture, you send it to a "Target" folder which you can set up in your scan options or settings.

At a guess your current destination or target folder is getting to large for the hard drive that its registered on

You've 2 options, clean out the target drive or use the scan options to send your pictures to a new destination with plenty of space.

go to hp.com support downloads, enter model number then operating system get the full version and then re install..also, plug your all in one directly into the power outlet.
here's that link

kindly reinstall the driver software disk.choose repair option while you installing.it will fix the missing file.

the most defalt of option is reinstal the driver and check in the Device Manager the usb you  have 3 usb root hub,1 enhanced pci to usb controler,update and try again,it should work. 

When you choose Repair option it would get you the repair mode. The disk is available to dos prompt or you can run any repair tools to correct the harddisk problems. But when you choose reinstall it would ask you the option to reinstall the operating system without formatting or with formatting. If you wanting to just reinstall the operating system to sure the missing or corrupted files be recopied choose the option from the reinstall menu without formatting. Let me know the solution helped. I could also help you out more or how to fix the harddisk if it wouldn't allow you reinstall without formatting!! Send me your contact information and would help you further instruction by instruction in your specific probem.

Right click and open the installation disk and look for 'applications\setup' and install it.
If you donot see the same, double click on the disk [left] select 'install\custom install' and select 'productivity studio' and install it, it should work.
The last option is to reinstall the whole drivers.

If possible, find the software disk that came with the printer, and reinstall. One of the options should be to scan from the scanner to the computer. Just make sure that option is selected on re-install, and that the necessary communication cables for that option are installed.

could be a software issue, uninstall and reinstall the scanner software.. the uninstall option should be available on the scanner software folder found in start>all programs..

reinstall the scanner software using the disk that came with it.

I would reinstall the driver first. Get the latest ScanGear and Toolbox from the Canon Website.
http://consumer.usa.canon.com/ir/controller?act=DownloadDetailAct&fcategoryid=351&modelid=11011
Do you have any other image devices such as a Multifunction (scanner,fax, printer) or digital camera attached to the computer?