BleachBit not cleaning/deleting URLs or Adobe Reader Recent Files

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No doubt I'm doing something dumb (newbie alert) - but I've just loaded Bleachbit and ticked lots of things to clean: some of them clean up just fine (e.g. Recycle Bin empties OK, C:/....AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\ empties OK
etc)
but others such as browsers (Opera, IE11) retain URL history and Adobe Reader still shows Recent Files.
Yes, I'm closing down all these applications when running BleachBit. I guess I must be following the basic process OK because Recycle Bin and others are emptied by BleachBit.
No doubt, however, I'm doing something silly here - can anyone help?
I'm using Windows 7
Many thanks for your help!

BleachBit 1.8 has a known bug that it doesn't have current definitions for Opera versions 15+ (LP#1389821)

At that site you could two file separate tickets for MSIE 11 and Adobe Reader. Please include the version of Adobe Reader in your ticket.

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Andrew, lead developer