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I have a couple machines with windows 7 installed. After copying some text into the clipboard the system delays for around ten seconds before it lets you paste it. In other apps if I try to copy some text, and then copy again before the ten seconds elapses, I get an error message access denied.

Unsuccessful actions: reboot, recover, try another app.

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Do you have any password management tools installed on your system like keypass or anything? These tools often hook into the clipboard so they can quickly clear it after you have copied a password. – Zoredache Jul 25 '13 at 0:12
No I don't have. – Jesusalex Jul 25 '13 at 14:52

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