macos - How do I use a PC keyboard on a Mac - Ask Different
Using windows keyboard on Mac
Windows Keyboard - Apple Community
Keyboard experience of developing on a Windows PC and a Mac at the same time
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I switched to a mac, and I want to use windows shortcuts, or at least similarly placed buttons. Like for example fn+c for copying and fn+v for pasting. Because that's where control is located on a mac. You get the idea.
Thanks a lot for the help! :slig
I too, have a "PC" keyboard, and here's what you have to do (see attached image).
Open System Preferences and go to Keyboard:
Once there, click in the "Modifier Keys"
Select your keyboard.
Change your keys to reflect your change. (I have it changed too!)

Just plug it in and off you go. As for keyboard mappings, if you goto the System Preferences -> Keyboard, you can adjust the Keyboard modifiers there. Just set the Control key to behave like the Command key.
After 5 years of asking this question, today i have faced same issue.
so I decided to google the solution and I haven't found an answer to your question.
I kept searching until i got the solution, so I decided to get back to you and tell you what I have found out, is was too simple.
STEPS:
Connect the Windows PC keyboard to the Mac as usual, either by USB or Bluetooth
Pull down the Apple menu and choose “System Preferences”
Click on “Keyboard”
Choose the “Keyboard” tab and then click on the “Modifier Keys” button in the lower right corner of the preference panel
Choose the PC keyboard from the “Select Keyboard” dropdown menu at the top of the Modifier keys screen to insure you are modifying the proper keyboard connected to the Mac
Click the dropdown next to “OPTION Key” and select “Command”
Click the dropdown next to “COMMAND Key” and select “Option”
Cite : https://osxdaily.com/2018/01/31/use-windows-pc-keyboard-mac-remap-option-command-keys/
Well done. Remapping the two keys via system preferences, keybboard, keyboard, modifier keys is the way to make a PC Keyboard behave like a Mac Keyboard. I just bought a PC keyboard for my Mac and was very frustrated that none of the possible key combinations (CTRL-Tab, Windows key-Tab, and Alt-Tab) would bring up the oblong picture of all the running programs. Simply swapping keys Command and Option got things back the way they were with a Mac keyboard. Now to flip programs I hit Alt-Tab, bearing in mind that the "Alt" is located where the "Command" key is on the Mac keyboard, and vice versa. The old copy and paste key-combinations of CTRL-C and CTRL-V, are now in their usual places, even if I am in fact hitting Alt-C and Alt-V.
HI there !
I love Mac OS and have always used the Mac keyboard until now. More specifically, the Mac laptop keyboard. However, I have carpel tunnel and have recently built a really nice mechanical keyboard which helps a lot for when I am at my desk at home. However, the base I built it upon is designed for windows, with the keys mapped for a windows pc.
I use my laptop as a desktop when I am not out of the house, so it sits under my desk and I have a proper monitor. Everything works fine apart form the windows key, function keys and alt keys are all dead on my mechanical keyboard.
Therefore, when I have to use the command key , or function key I have to reach under my desk just to hit that key.
I know there is the 'change keys' settings , but this only allows for you to remap existing Mac keys to other ones (for example, switching the functions of the control and command keys) . What I want to do however, is add the functionality of a key that supposedly doesn't exist on Mac (say, use the windows key as the function key, and alt as the command key.)
I wondered if anyone has had a similar issue and found a way to make this work ?
Thanks :)