Why am I getting the error message Unsupported 64-bit application?

[AC Question]

I can't update my phone software because of this message Unsupported 64-bit application.

Is there a 64-bit windows compatible version of the update software available for my htc dna phone?

 

[Ry]

Re: I can't update my phone software because of this message Unsupported 64-bit application.

Is there a 64-bit windows compatible version of the update software available for my htc dna phone?

What are you trying to run?