So Apple is dropping 32 bit computing? Hmm ....<p>Gee, I'm building, configuring a server based on an Asus motherboard and the AMD FX-8350 processor, 8 cores, 64 bit addressing.<p>Surprise! I discovered that Windows XP 32 bit Professional SP2 (service pack 2) will install and run! It sees all 8 cores, and the version of Microsoft's TASKMGR plots the activity separately on each of all 8 cores. It also sees the full 16 GB of main memory and is willing to use 2 GB of it with 5 GB of paging space.<p>And I discovered that the Western Digital (WD) Data Lifeguard Tools CD, IIRC version 11.1, boots and runs! This is amazing since what boots is old DOS! The DOS part will boot from a CD/DVD USB (universal serial bus) drive, but then the WD software doesn't run. But if boot from a SATA (serial advanced technology attachment) CD/DVD drive, then the WD software does run.<p>If have the Windows version running and put the WD CD in the SATA drive, then the WD software appears to run as a Windows application!<p>My most important application is 32 bit editor KEdit, and I've discovered that it runs fine on Windows 10 64 bit Home Edition on an HP laptop with a 64 bit Intel processor with two cores and 4 threads.<p>So, lesson: With Windows, AMD, Intel, and ASUS, a lot of 32 bit computing still works! Sorry Apple!<p>My first intention installing Windows XP was just to run some experiments on using the WD Tools to backup and restore a bootable partition, but I've since discovered that apparently my trusty old copy of Nero for CD/DVD reading/writing that I long used on XP appears to install on Windows 10 on the HP laptop but as far as I can tell won't read or write CDs or DVDs. So, for routine reading/writing CDs and DVDs, apparently I should keep a bootable partition with XP.<p>Sorry, Apple, 32 bit computing won't go away soon: The reason is standard and old in computing -- there is a lot of old software people very much still want to run.