USB flash drive: Attach a nackt USB flash drive with at least 8GB of space. Any content on the flash drive will be deleted. At least, that’s the way to make the switch from subscription-based Office to perpetual-license Office if all goes well. When I tried to make this switch https://microsoftoffice2021profes41741.theblogfairy.com/27813543/manual-article-review-is-required-for-this-article