Loud hum coming from front end on 2002 VW Golf TDI. Just replaced tires with Pirelli all seasons. Not sure if it is tire noise or possible CV joint problem. Any Ideas?

humming tyre noise changes with different road surfaces so if it doesn't change it is not tyres
most humming noise is harmonic vibration of drive shafts/ lines so check cv joints , "U" joints, bent drive shafts
wheel bearings etc

Could be carrier bearing(s), worn gears, or bad driveshaft joints.

Try jacking the vehicle up and testing. If noise still present then possible wheel bearing failure.

When you turn and hear a noise it is usually a CV Joint that is going bad. Humming can be a lot of things. Tires wheel bearings, rear end differential etc.

Have the wheel bearings / wheel balance checked.

ever think of the strut?

Unless it is a hub bearing, yes, it could be a CV. If you can, look under the car and right behind the tire/hub assembly, you should see a rubber boot on the end of a shaft. Check the boot for a possible rip in it. If it is ripped, you'll see grease all over the place. Check the other end too, this end is attached to the transmission and will have the same appearance if damaged.

I'd say there's no grease left in the CV joint boots, if it's front wheel drive. Something you should check right away, as your car has about reached that age, and if you run it without grease in the boots, you'll eat up the joints in a big hurry, and that's costly and dangerous as well.

you could have more than one problem the vibration accelrating maybe an inner cv joint ,if you just had the tires replace and an aligment done they should have checked the front end for worn out ball joint and tierods but the wheel bearing may not have any movment but can still make noise

The one on the side you hear the noise from is most likely bad.
Also check the tires you may have a bad spot on one.