1 hour ago, paulbike said:
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1- only happens after running CCleaner
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4- Unchecking Chrome internet cache prevents this from happening,
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Pretty conclusive that it's something that CC is cleaning from the Chrome Cache that is closing the tabs then.
(The logging into youtube and running may be something else, see below).
As no one else has responded it looks as if you are going have to find the problem file yourself.
I don't have Chrome on my computer, but here's how I would go about it.
(It's a bit tedious/repetative, most troubleshooting usually is):
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In CCleaner Right click on Chrome 'Internet Cache' and select 'Analyze Internet Cache' from the pop-up menu.
It should report so many KB in so many files,.
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Double click that line and it will list the files. (Don't worry if you can't see the full names).
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Right click any of the files and it will give you an option to 'Save to text file', which makes the next bit easier.
The names themselves probably won't give you much of a clue as to what they are.
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I would now start adding the filenames to the 'Exclude' list in CCleaner Options. You can cut and paste the full path/file name from that saved textfile.
(Doing a few at a time is probably quicker than one at once)
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Then ope/ close Chrome, run ccleaner and see if the problem still occurs.
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If it does then remove those entries from Exclude, and try the next few filenames.
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And so on until the problem stops.
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Once the problem has stopped then you can look at those few Excluded files and try them one at once to see which is the one you need to leave as an Exclude.
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An alternative method would be to put ALL the filenames into the Exclude list and remove them one at once until the problem starts again, then the last file that you removed from the Exclude is the problem one.
Either method is tedious work, but it should pinpoint which file you need to Exclude to stop CCleaner clearing it.
Of course there may be more than one file involved which could make it trickier.
The logging into, and running, the youtube videos may be because of something else (I came across it yesterday).
Youtube is owned by google and they have a habit of syncing their programmes without asking you.
eg. Gmail, youtube and Chrome are all synced, logging into one logs you into the others.
This article talks about Gmail and Chrome, but also mentions that youtube is involved.
https://searchengineland.com/when-users-log-into-gmail-or-youtube-theyre-now-also-logged-in-to-chrome-305801