####################
# TO REMOVE CYGWIN #
####################
# Note: these instructions apply ONLY to the
#       installation of Cygwin on Microsoft
#       Windows based systems.
cygrunsrv -L (to see list of all running services)
cygrunsrv -E sshd
cygrunsrv -R sshd
cygrunsrv -E cron
cygrunsrv -R cron
cygrunsrv -E cygserver
cygrubsrv -R cygserver
delete the folder c:\cygwin and all its sub-folders
remove the Environment Variable CYGWIN
edit the Environment path accordingly
Start...Run... regedit and delete these two registry trees
"HKEY_CURRENT_USER_Software_Cygwin"
"HKEY_LOCAL_MACHINE_Software_Cygwin"
Go to Control Panel, Category View, Performance and Maintenance, Administrative Tools, Computer Management.
or click Start...Run...compmgmt.msc
delete the sshd user if it exists in the "System Tools" - "Local Users and Groups" - "Users" section.