It might be related to the shortcut conflicting
I had a similar issue with one of my configuartions. (except my hotkey was win+mousewheel for volume)
Since your already using auto-hotkey this should be fairly easy
1 right click start button, go to settings
2. check 'show all settings'
3 on the controls tab, change 'windows key opens' to nothing
4 also change 'additional classic menu hotkey (for me I used ctrl+shift+r)
This auto-hotkey script checks if the windows key was pressed (Less than .25 seconds) or held (over .25 seconds) and only sends the (ctrl+shift+r)hotkey if it was 'pressed' otherwise just passes the regular windows hotkey through
Code:
#NoTrayIcon
<<$LWin::
KeyWait, LWin, T0.00
If ErrorLevel
{
KeyWait, LWin, T.3 ; Wait .25 to see if key is held
If !ErrorLevel ; No timeout, so key was released
{
Send +^r
Return
}
Send {RWin down}
KeyWait, LWin ; Wait for button to be released
Send {RWin up}
Return
}
Return
<<$LWin::
KeyWait, LWin, T0.00
If ErrorLevel
{
KeyWait, LWin, T.3 ; Wait .25 to see if key is held
If !ErrorLevel ; No timeout, so key was released
{
Send +^r
Return
}
Send {RWin down}
KeyWait, LWin ; Wait for button to be released
Send {RWin up}
Return
}
Return