The Chrome Cleanup Tool is not currently manageable by group policy.
We have had a number of customer requests to allow administrators to:
* disable weekly scans for unwanted software and any resulting user-initiated cleanup
* control whether users can opt in to sharing meta-data about unwanted software found on the system
While a policy to control sharing meta-data from the weekly scans already exists (https://www.chromium.org/administrators/policy-list-3#SafeBrowsingExtendedReportingEnabled), there aren't blanket policies specific to the CCT and there doesn't yet exist a policy to disable the weekly background scan.
Comment 1 by atwilson@chromium.org
, Apr 20 2018