How to completely uninstall/remove cygwin from windows10

Steps for removal

1. open powershell with administrator privilege.
2. run takeown /f PATH_TO_CYGWIN /r /d y, for me, PATH_TO_CYGWIN = C:\ENVs\MinGW64.
3. run icacls PATH_TO_CYGWIN /t /grant everyone:F
4. run del PATH_TO_CYGWIN.
5. check if the files are deleted and delete the residual files.