my phone (nokia lumia) (Windows)

[WPCentral Question]

(nokia lumia) windows phone went black while on youtube. I took the battery off then put the battery back on turned it on and now its not letting me use all non phone apps. for example it lets me use the internet and settings, but not instagram or weather app. it says to buy them (even though their free) and if that doesn't work to uninstall it and redownload it. they all say the same message. I tried both and non worked the message poped up again. is this a virus? What do I do?

 

[atharva117]

May be it is scanning your SD card.