Question: How can I disable win key, alt+tab? 

Answer: you can do it via registry edit,\n\ngot to start -> run -> type 'regedit' -> press enter ----> a new window will pop up ---> on the left frame, open this directory, HKEY_CURRENT_USER&#92;Control Panel&#92;Desktop  -> keep 'desktop' selected on left frame, you will see some information on the main frame ---> find 'Coolswitch' ---> double click on cool switch ---> change value to 0 --> restart the PC. To enable it again change the value to 1 and restart the pc. hope this helps, good luck.
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