There is virtually no free-ware OCR software, and what there is isn't very good - I've looked ! And good OCR software is fairly expensive,
One problem is that the software bundled with scanners is usually two or three generations out of date. The other problem is that OCR software seems to 'learn' as you use it, and the more you use it the better it gets at recognising the sort of documents you are scanning. The biggest problems I have found with it lie in the area of document formatting. You sometimes need to play with the settings that define the document image - it may look like single column to you but not to the scanner. One other easily adjusted setting (usually !) is the resolution you scan the document at. This needs to be at least 300 dpi for good results.
So, unless you are willing and able to pay out a fair chunk of cash for market leading software, you are probably stuck with what you have. But experimenting with the settings can lead to satisfactory results but you can expect still to do a fair bit of re-formatting of your document.