Downloaded applications won't run RRS feed

  • Question

  • Lumia 650, windows 10, version 1511. I just got my phone back from repair, but when I download a program, it won't run, it says the file is damaged or similar (it's in Danish, so don't know what it would say in English). I have tried with Skype and with a security program. Skype won't download as an app either. i have changed the settings so that apps and downloads are saved on the device and not on the memory card. What to do?
    Wednesday, October 11, 2017 9:11 AM