Not sure if you have a HP computer but HP Connection Manager has been known to cause these problems.
A re-install of this program might help.
You may follow these suggestions:
Step 1:
Uninstall HP Connection Manager from programs and features, follow the steps in the link:
“Uninstall or change a program”
Uninstall or change a program - Microsoft Windows Help
Step 2:
After above step download and install HP Connection Manager from the link:
http://h20000.www2.hp.com/bizsupport...5&mode=4&idx=1
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