Software reinstallation on upgrade from 32 bit to 64 bit

Do i need to re-install softwares(read autocad,adobe CS5 etc.) if I am upgrading from 32-bit to 64-bit?

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More about software reinstallation upgrade
  1. You HAVE to do a clean install of Windows 64 bit on a fomatted drive, so, yes, you'll need to re-install your programmes.
  2. Yes. There is no direct upgrade path from 32-bit to 64-bit, it's a wipe and clean install.
  3. Yes. There is no OS upgrade from 32 but to 64 bit. You will have to do a new installation meaning all your data and apps will be gone. backup your files first.
  4. Hi :)

    ALSO some of those will NEED the 64 bit version to install...

    All the best Brett :)
  5. Thanks a lot!
    I guess they need to improve the upgrade process..
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