How to change widows 7 from 32 bit to 64 bit

hi there

i recently sent my pc in for repairs how ever they didn't install the 64bit widows 7 and now my PC is only using the 3 out of 6 gigs of ram i want to change to 64bit but im worried about my drivers on my PC cause the grafics card driver is allocated to 32 bit and when i go on the net i cannot find a 64bit driver and not really sure how to do it?

any ideas?
2 answers Last reply
More about change widows
  1. it may help if you were to tell people which graphics card you have
  2. Like mcnumpty23 said.

    Also, to the original question, you can't "change" from 32b to x64. You have to do a complete reinstall.
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