Minecraft Glitch, need help ASAP

[Bjornio]

I had this glitch for months, ever since I bought minecraft. Ok, so the glitch is this: After 1 minute of playing minecraft, the minecraft launcher closes AUTOMATICALLY, and I have to keep constantly on and off. Anyone know how to fix it?

[Ad Bot]

[Tremrist]

Reinstall

[Trymos]

Scan your computer for viruses, sounds like it to me.

Also,

Reinstall