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I realise there are plenty of questions about BCD errors here however I feel mine is slightly different.

I had a missing BCD file so I couldn't boot. I have now solved this using a question I found on this website (hence why I am here now) but this is the second time my boot file has gone missing. Now, either he really doesn't like where he lives, or my BCD or Hard Drive have a fault. The first time this error occurred I re=installed windows and lost all my data. However, upon being able to rebuild my BCD this time and keep my data in tact, I am looking for advice on how to avoid this happening again. I have seen from google that this is often something to do with 3rd Party Software. However, since I lost my data, I have only downloaded two pieces of 3rd party software: Minecraft and Xsplit (A streaming program - I stream to twitch).

To clarify the question: What is the cause of Boot files going missing and how can it be avoided?

EDIT 1: I don't know if this is related (I imagine it is) but sometime when I go to start up my computer, all the lights will come on on my Mouse, my monitors will have signal and so on... But I just have a black screen with no cursor... I feel this is relevant.

EDIT 2: Following @DanielB 's request, here's the SMART data of my HD:

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x002f   100   100   051    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0026   252   252   000    Old_age   Always       -       0
  3 Spin_Up_Time            0x0023   094   091   025    Pre-fail  Always       -       2076
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       284
  5 Reallocated_Sector_Ct   0x0033   252   252   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   252   252   051    Old_age   Always       -       0
  8 Seek_Time_Performance   0x0024   252   252   015    Old_age   Offline      -       0
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       333
 10 Spin_Retry_Count        0x0032   252   252   051    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       12
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       260
191 G-Sense_Error_Rate      0x0022   252   252   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0022   252   252   000    Old_age   Always       -       0
194 Temperature_Celsius     0x0002   064   064   000    Old_age   Always       -       22 (Min/Max 13/29)
195 Hardware_ECC_Recovered  0x003a   100   100   000    Old_age   Always       -       0
196 Reallocated_Event_Count 0x0032   252   252   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   252   252   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   252   252   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0036   100   100   000    Old_age   Always       -       281
200 Multi_Zone_Error_Rate   0x002a   100   100   000    Old_age   Always       -       3283
223 Load_Retry_Count        0x0032   100   100   000    Old_age   Always       -       12
225 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       5506

SMART Error Log Version: 1
No Errors Logged

The complete version is available on my dropbox.

  • Regular software can't even touch the BCD. – Daniel B Apr 20 '14 at 12:30
  • Oh well that shows how the internet can mislead people! @DanielB . So It is purely a hardware issue? – Harvey Apr 20 '14 at 12:40
  • Probably. You could start by running Memtest86+ (at least 2 passes) and updating your question to include the SMART attributes of your hard disk. My preferred software for getting this data is GSmartControl. – Daniel B Apr 20 '14 at 14:14
  • Regular software can indeed affect the BCD - they just shouldn't and normally don't. They can't if they're running without admin privileges, though. – Mahmoud Al-Qudsi Apr 28 '14 at 22:36
  • My first though was that the BCD was being corrupted due to these blue screens on startup. My PC often takes a long time to start and many times I have to turn it off and on again while it's booting as it gets stuck on a black screen for hours. – Harvey Apr 29 '14 at 6:20
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It looks like your hard drive might be going because of old age. You should buy a new hard drive, clone it (If possible) or take out the old drive, reinstall Windows, and be good to go.

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