After the Win7 system partition does not display the capacity and the prompt "signal timeout has arrived" how to do

  
1, the hard disk only shows the drive letter, and there is no specific capacity information;
2, double-click the partition, error message: Can not access E:\\. The signal light timeout period has expired;
3, enter the disk management to view, display normal;
4, it is recommended to test the hard disk first, to confirm whether it is a hard disk failure.

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