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March 30th, 2026 23:32
Critical issue found
Inspiron 15 3511
<To protect you, your private information was removed from public view. All private data was saved to your private Case. DELL-Admin>
Critical issue found
Error Code: 155
Description: Hard Drive - self test unsuccessful , terminated
What is that mean?


ejn63
10 Elder
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30.8K Posts
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March 31st, 2026 00:28
It means the hard drive in the system has failed, or if it's still running now soon will. If the system does boot and you have data on it, back it up immediately. If the system no longer boots or recognizes the drive, it's too late at this point.