Windows – win 10 autohotkey; how do you remap window swapping from alt-tab to ctrl-tab

I would like switch Alt and Ctrl because I'm currently a Mac user on Window (with a PC keyboard). All hotkeys on Mac: Cmd+n, Cmd+w ... -> PC: Ctrl+n, Ctrl+w and Cmd got same place as Alt key.

I found a non perfect solution:

Map all letters like that :

LAlt & a::Send {LCtrl Down}{a}{LCtrl Up}
...
LAlt & z::Send {LCtrl Down}{z}{LCtrl Up}
LCtrl & a::Send {LAlt Down}{a}{LAlt Up}
...
LCtrl & z::Send {LAlt Down}{z}{LAlt Up}

And you will keep Alt+Tab and AltGr functional

This is my full implementation (non complete): http://www.pastie.org/1660132

#SingleInstance force

#r::Send ^r ;reload
#z::Send ^z ; undo
#y::Send ^y ; redo
#f::Send ^f ; find inside apps
#c::Send ^c ; copy
#x::Send ^x ; cut
#v::Send ^v ; paste
#a::Send ^a ; select all
#t::Send ^t ; new tab in browser (IE, Safari, Firefox, etc)
#s::Send ^s ; save inside apps
LWin & Tab::AltTab ; the motherlode, alt-tab!

#Up::Send {PgUp} ; PgUp
#Down::Send {PgDn} ; PgDown
#Left::Send {home} ; Home
#Right::Send {end} ; End
#LButton::^LButton

•all other Cmd+ goes to Ctrl+

I don't know about that, is it possible or not, but most common options should be covered with that script

P.S You can set AutoHotkey to start automatically when windows starts, like any other program on windows - just copy a shortcut to AutoHotkey to folder

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup"

If you are running windows on virtualbox not with bootcamp, then remeber to change your "Host" key from Left Command to Right Command (from Virtualbox (NOT Virtualbox VM) menu "VirtualBox"->"Preferences"->"Input") to make those shortcuts work