External Hard Drive

Something wrong with my external hard drive. I lost couple of big files that I downloaded yesterday.
It is like this for couple of days. When it is plugged in computer can hardly starts. What can I do to fix this.
Thank you.
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E:\ Volume Label: Can, File System: NTFS

Volume label is Can.
Stage 1: Examining basic file system structure ...
File record segment 2712 is unreadable.
File record segment 2736 is unreadable.
File record segment 2737 is unreadable.
File record segment 2738 is unreadable.
Incorrect information was detected in file record segment 2739.
Incorrect information was detected in file record segment 2740.
Incorrect information was detected in file record segment 2741.
Incorrect information was detected in file record segment 2742.
Incorrect information was detected in file record segment 2743.
Incorrect information was detected in file record segment 2744.
Incorrect information was detected in file record segment 2745.
Incorrect information was detected in file record segment 2746.
Incorrect information was detected in file record segment 2747.
Incorrect information was detected in file record segment 2748.
Incorrect information was detected in file record segment 2749.
Incorrect information was detected in file record segment 2750.
Incorrect information was detected in file record segment 2751.
Attribute record (128, "") from file record segment 2803
is corrupt.
Attribute record (128, "") from file record segment 2804
is corrupt.
Attribute record (128, "") from file record segment 2805
is corrupt.
Attribute record (128, "") from file record segment 2806
is corrupt.
Attribute record (128, "") from file record segment 2807
is corrupt.
Attribute record (128, "") from file record segment 2808
is corrupt.
Attribute record (128, "") from file record segment 2809
is corrupt.
Attribute record (128, "") from file record segment 2810
is corrupt.
Attribute record (128, "") from file record segment 2811
is corrupt.
Attribute record (128, "") from file record segment 2812
is corrupt.
Attribute record (128, "") from file record segment 2813
is corrupt.
Attribute record (128, "") from file record segment 2814
is corrupt.
Attribute record (128, "") from file record segment 2815
is corrupt.
Attribute record (160, $I30) from file record segment 9343
is corrupt.
14592 file records processed.
File verification completed.
File record segment 10572 is an orphan.
File record segment 10573 is an orphan.
File record segment 10576 is an orphan.
File record segment 10579 is an orphan.
File record segment 10581 is an orphan.
File record segment 10582 is an orphan.
File record segment 10583 is an orphan.
File record segment 10586 is an orphan.
File record segment 10591 is an orphan.
File record segment 10593 is an orphan.
File record segment 10594 is an orphan.
File record segment 10595 is an orphan.
File record segment 10596 is an orphan.
File record segment 10597 is an orphan.
File record segment 10598 is an orphan.
File record segment 10601 is an orphan.
File record segment 10605 is an orphan.
File record segment 10606 is an orphan.
File record segment 10607 is an orphan.
File record segment 10608 is an orphan.
File record segment 10609 is an orphan.
File record segment 10611 is an orphan.
File record segment 10612 is an orphan.
File record segment 10613 is an orphan.
File record segment 10615 is an orphan.
File record segment 10616 is an orphan.
File record segment 10617 is an orphan.
File record segment 10621 is an orphan.
File record segment 10622 is an orphan.
File record segment 10623 is an orphan.
33 large file records processed.
Errors found. CHKDSK cannot continue in read-only mode.
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Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8.1 Single Language, 64 bit
Processor: Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz, Intel64 Family 6 Model 58 Stepping 9
Processor Count: 4
RAM: 3717 Mb
Graphics Card: Intel(R) HD Graphics 4000, 1922 Mb
Hard Drives: C: Total - 97318 MB, Free - 14840 MB; E: Total - 953866 MB, Free - 711008 MB;
Motherboard: SAMSUNG ELECTRONICS CO., LTD., NP900X4D-A02AE
Antivirus: Windows Defender, Disabled