How to change widows 7 from 32 bit to 64 bit

[Philip_07]

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?

 

[mcnumpty23]

it may help if you were to tell people which graphics card you have

 

[nocheese]

Like mcnumpty23 said.

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