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Every time I start Win 7, I get the following Facebook Messenger related message appear in a 'notepad' window on my desktop. Any ideas how to stop it?

[0105/225425:ERROR:backend_impl.cc(2086)] Corrupt Index file
[0105/225425:ERROR:cache_util_win.cc(43)] Unable to move the cache: 5
[0105/225425:ERROR:backend_impl.cc(134)] Unable to move cache folder C:\Users\TheUser\AppData\Local\Facebook\Messenger\fbmessenger.cache to C:\Users\TheUser\AppData\Local\Facebook\Messenger\old_fbmessenger.cache_000
[0105/225425:ERROR:backend_impl.cc(221)] Unable to create cache
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I tried to tag this [facebook-messenger] and [errors] but I'm an underpriviledged user! Shame on me :( –  Grokodile Jan 29 '13 at 23:33
I've added 2 new tags,m but I can't add the errors tag.Error 5 often means access denied. So check the folder permissions. –  magicandre1981 Jan 30 '13 at 5:24

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