Is it possible to install Windows 10 or 11 on my Mac Pro?

kev1964 wrote:

i want to install windows 10 or 11 on my mac pro a1186 can this be done and any ideas how to do this i am running el capitan 10.11.6 and Os X Yosemite on a different hd

You should be able to install Windows 10 using Boot Camp, assuming it's a Mac Pro from 2013-2019.

See here - Install Windows 10 on your Mac with Boot Camp Assistant - Apple Support

officially such an old mac does not support win10 in BootCamp

Install Windows 10 on your Mac with Boot Camp Assistant - Apple Support

but you should be able to install windows7 and the update it from that to win10

win11 is not officially supported in any macs in bootcamp I believe