Old versions require Apple QuickTime 6 or 7 for video thumbnails. Do not install QuickTime (it has security holes). Click Ignore during setup. The photo editing works fine.
: Full retail versions, often compatible with Windows 11, are frequently listed on eBay or through Office Depot . arcsoft photostudio old version new
Old installers write to C:\Program Files (x86)\ and registry keys that trigger security blocks. Old versions require Apple QuickTime 6 or 7