How to change 32-bit to 64-bit

I am now using win8.
How can I move my OS from 32-bit to 64-bit.
my laptop can operate at 64-bit
2 answers Last reply
More about change
  1. You need 64 bit media to perform a clean install,no way to convert.
  2. You have to save your files as a backup.
    Reformat the entire disk. Erase everything.
    Then install 64 bit.
    64 bit is a fresh install, not an upgrade.
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