Open the start menu
Type windows+R or open "Run"
Execute the following command:
chrome.exe --user-data-dir="C://Chrome dev session" --disable-web-security
start chrome.exe --disable-web-security --user-data-dir=c:mydata
start chrome.exe --disable-web-security --user-data-dir=c:mydata
open -n -a /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --args --user-data-dir="/tmp/chrome_dev_test" --disable-web-security