https://confluence.atlassian.com/display/STASH029/Installing+Stash+on+Windows
Last paragraph contains Uninstallation instructions
In addition to the installation and home directories mentioned by Bhushan Nagaraj do not forget to remove, Startmenu entries,Service and the atlstash user account.
It's a shame that there is no uninstaller.
How do you remove the windows service?
from bin directory run "service.bat remove Stash"
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