Windows 10: i miss clicked and something i dont rlly know what happened plz help

i miss clicked and something i dont rlly know what happened but i saw something like a icon on the windows start thing

:)

 

plz help

hi i have a problem with nokia n 86 it dont show up txt msg and missed calls event. I mean outside on the wallpaper. Ex 1 MISSED CALL its didnt show up. Idk why. And i checked all the sittings and nothing happened. Plz help

 

oh man i dont know whats wrong.... plz help urgent....

i dont know whats wrong with my n900.... a couple of weeks before i tried to install nitroid gingerbread on my n900.... i did exactly what it said it was almost complete but the last step didnt complete so i left it like that..... i was using my mobile fine
until one day i restarted my phone... when it started it showed me 2 options (dont remember what the options were) although the 2nd one was power kernel something like that.... i chose 1st option after that it turned off when i startit again only nokia logo
comes and it turns off by himself.... i thinki bricked my fone... but y didnt it happen when i was trying to install nitroid... plz help any way to fix it....



P.S. I cant flash it either.. it doesnt go to usb mode anymore neither does it charge....

 

hello plz help me plz plz

thank for helping but the link you shared i cant understand because i dont have sufficent knowledge of computer plz tell me step to step
how we create a bootable copy using pen drives....

i have window 10 professional