Sideloading apps Windows 10149

[Saif Az]

Hey guys, I don't seem to be able to sideload an app from my SD card, I did download an app (6tag: because I get an error every time I try to download it from the store on my phone) on my PC then copied it to my SD card, but I can't find the "install app from SD card in the store" in the store's option, help?

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