Howard Oak­ley solves all your Mac hard­ware, soft­ware and iOS is­sues

Mac Format - - CONTENTS - EditEd by howard oak­ley byHarold r Man­cusi-un­garo, Jr

QWill macOS Mo­jave be able to run 32-bit apps – I have sev­eral I can’t up­date. If not, could I run them in a macOS ‘vir­tual ma­chine’?

AMo­jave does run 32-bit apps, although the first time that you open them in Mo­jave it in­forms you that their days are num­bered. Ap­ple orig­i­nally warned that High Sierra would be the last macOS to run 32-bit apps “with­out com­pro­mise”, though it didn’t ex­plain ex­actly what that meant. In fact, Mo­jave will run 32-bit apps, but the next ma­jor ver­sion af­ter it – 10.15, ex­pected in late 2019 – is now the ver­sion that looks des­tined to kill off sup­port for these older apps.

Should you en­counter prob­lems with apps, whether be­cause they’re 32-bit or for some other tech­ni­cal rea­son – you should be able to set up a vir­tual ma­chine (VM) run­ning a pre­vi­ous macOS, such as High Sierra.

This is pos­si­ble in Par­al­lels Desk­top, VMware Fu­sion and Vir­tu­al­box – we de­tailed it for VMware Fu­sion in Mac­For­mat #325 (p36). An­other op­tion is to cre­ate a dual-boot sys­tem us­ing an ex­ter­nal drive, but a VM means you can run those apps with­out restart­ing.

The need for 64-bit soft­ware ex­tends be­yond apps to all ex­e­cutable code: many older Quick­Time com­po­nents and plug­ins of all kinds on your sys­tem may be 32-bit. Sev­eral util­i­ties can check this more deeply, in­clud­ing my 32-bitCheck (Free, eclec­ti­clight.co).

When a macOS up­date stops im­por­tant apps from run­ning, con­sider in­stalling a pre­vi­ous ver­sion in a vir­tual ma­chine.

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