There is "Windows Fax & Scan" on Home Premium, but it's mighty fussy about what scanners it will accept. It doesn't do TWAIN: you have to have a scanner that's compatible with some new Microsoft interface thingy. My excellent old Agfa wasn't; I bought a Canon Lide scanner last month, and that is.
I'm impressed with Win 7. It does all I ask of it. I like the way it searches out drivers for peripherals.