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Ubuntu checks for updates on every boot automatically. You can't run the same command manually at the same time.
If you really want to do it manually, disable automatic updates.
...I am 100% sure you still have a local idea 15.01 launcher in ~/.local/share/applications/jetbrains-idea-ce.desktop
.
If you drag the global one...
Well, if it really had a motherboard hardware problem, then it seems unlikely that its failure had anything to do with your installation of ubuntu. My suggestion would be to boot into ubuntu via...
sudo apt-get purge steam-launcher && sudo apt-get autoremove
Post any errors to recieve further assistance.
Have a look at pm-action(8)
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