Windows 7 Upgrade From Vista Home Premium Stopping 87%

Hey Guys

If anyone can help me it would be great.
I had recently bought my copy of windows 7 Home prepium UPGRADE .

As i am upgrading it gets to 87% In Gathering Setting and Files. and has stopped both times.
What do you recommend i do? i dont really want to have to do a clean install if i dont need to.
But am backing up my hardrive atm.


Most upgrades stopping are because firewalls or av programs kick in to protect vist from being taken over by the new os.

yeah? so should i just disable avira ?

and try again? . im also doing a defrag and a disk cleanup because some forums said its best to?
hopefully this try it will work :)

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