Alt tab making game unplayable after latest windows update?

This is getting pretty frustrating, I have a decent PC have never had any problems before. Got dropped out of a ranked game yesterday to a windows service pack update that I couldn't stop ( seriously %%%% you Microsoft. ) And now today, I alt tab to change a song, and I can't get back into the game for 5 minutes. Every time I click on the map to move it just drops me straight back to the desktop, until eventually after 5 minutes it decides it will let me do it windowed and at a quarter of the resolution... Has anyone else had any similar problems recently? {{sticker:sg-shisa}} Basically, %%%% MS. ¬_¬
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