Keyboards are pretty flimsy nowadays (literally - with flexible circuit sheets, etc.), and depending on the type might take a bit of work to tear down to clean the parts, and my be a toss up on usability. That said, Google is your friend, search for "keyboard cleaning" with the model of your laptop you will probably get a hit or three on some tips for disassembly and cleaning, etc.
Before you do that, have you checked to see if there's a good price on a replacement keyboard? - I've found some on Amazon as low as $15 for Dell laptops and such, eBay is good too but you need to look at the seller's track record and such to make sure things are jake.
Before you do that, have you checked to see if there's a good price on a replacement keyboard? - I've found some on Amazon as low as $15 for Dell laptops and such, eBay is good too but you need to look at the seller's track record and such to make sure things are jake.