Hello. I have been going around with this for days, with no luck: Everytime I run AdwCleaner, it finds PUP.optional.legacy but does not remove it. After a positive scan, I initiate the cleaning process then I reboot as instructed. After reboot, the log says "no malicious files found" and nothing was cleaned. The quarantine file is always empty...I've never seen anything in it. I have run the AdwCleaner scan many, many times the last few days--always with the same results. I have also uninstalled and reinstalled it several times. I have also run many malware bytes scans (it currently finds nothing) as well as Zemana and Hitman Pro. Finally, I have reset Chrome and re-scanned, but with no change in the results.
Again, to clarify and summarize: AdwCleaner finds the PUP but does not remove it...I have never had a scan that did not show PUP.optional.legacy, even immediately after a clean-and-reboot.