Check to see if cldflt.sys is running, and if it isn't, enable it.
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Press the Windows key
and browse to Windows System > Command Prompt. Right-click and select More then Run as administrator.
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Type cd %systemroot%\system32\drivers and press Enter.
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Type sc query cldflt and press Enter.
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Look for a line in the results called State. If the state is not 4, change the state of cldflt.sys to automatically run.
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To change the state, type sc config cldflt start=auto and press Enter. The dialog box should
display [SC] ChangeServiceConfig SUCCESS.
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Restart your computer.