While you can technically download two or more versions of Stellar Data Recovery on a Windows PC, you can’t run both versions at the same time.
That’s because the later installed version of Stellar Data Recovery software replaces and modifies the earlier version’s critical files in the system. This would prevent your Windows PC from running two versions of Stellar Data Recovery software at the same time.
Even if you run just one of the software versions, you may experience problems due to conflicts with the other installed version(s), and therefore the software may fail to function normally.
Thus, it’s recommended to install and run only one version of Stellar Data Recovery software at a given instance on the same PC.