The decision to completely focus on AMD's 64-bit drivers doesn't affect too many users because the number of 32-bit Windows users is quite small.Neowin reported that Steam's data shows that only about 2% of gamers play on 32-bit Windows machines, this number includes all operating system versions, not just Windows 10.
Obviously, switching to 64-bit Windows is something everyone should consider doing when more and more companies claim to support this OS only.
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