My new SSD is losing data, slowly over time, really frustrating

ryker66

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Feb 19, 2017
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7 month new samsung 850 pro 500gb drive with win7 ultimate

noticed this started happening about 3 months in, there was every once in awhile, some (2 or 3) files missing. never operating files though. txt-docx-rtf-mp4-jpg. until now, has been just about 3 or 4 times, just annoying up till now.

then last week, I did a backup of the system, checked the backup, and 50 pictures were missing from the backup, they were there but were gone. Checked the ssd, they were gone, in that win7 stated it could not open the file because of no pic info. Yes, on checking the files, (the file names were still there), but they contained no data to be read, as in a file named roses with a size of 3mb now read roses---0 kb.

Today I lost files in my documents, as in Sparkplug Cross ref.txt. That name is still showing, but you click on the file, it opens, and contains nothing. 40 or 50 like this today. I got them back by pulling out my now not used LV SCSI drive, and copying them back on the ssd.

Anybody care to share an opinion. Thinking about going back to a HD.

Trim is working, everything is aligned properly. I really wanted these new ssd's (have 2-new and the old computer), to work out.



 
I'm inclined to think there's a software issue more than a hardware issue since your SSDs are fairly new. Of course, while unlikely, it's not impossible that you got defective drives. Have you checked the SMART health of the drive? (Using something like HDTune or CrystalDiskInfo)

If this was a data corruption or bad block issue with the drive, that should show up in the SMART attributes.
 
Agreed, an SSD would not lose data in this fashion but a backup program, bad RAM, or an OS issue could.

 



So, I have now crystal disk--it reports the ssd is good. Samsung's Magician reports it OK-good, I have hardwareinfo64 which has a nice drive section-it reports OK-Good

Can't be the backup--this happened on the ssd, and then was backup to the other drive. I in essence loaded bad files onto a backup.

I still think it's the ssd. Tell me what you think. My wife had sent about 25 emails out. I asked her about one of them, she to look at it, it was in Thunderbirds sent file. I looked, and there were about only 10 files showing. She said that can't be right. Did a search with "ultrasearch" program, it found them in the sent folder, went to the sent folder, they were not there. To me, that tells me the ssd is not giving the info out to be put in the folder,, if it was the video card, I think nothing would show, bad ram, still think nothing would show, ssd forgetting itself, maybe. I rebooted the comp., and the files were displayed. This time they weren't gone. The others, i referred to, reboot did not help.

I don't know, tell me where my thinking is wrong here. I really do want to know, whats happening here, if possible.

 
While you cannot rule out something very unusual with the SSD, he SSD will only store what is correctly written to it, so the hardware and software accessed could be the issue, and are a higher probability that the SSD.

My next move would be running the free version of memtest86 from HERE to look for any memory errors. Memory errors can cause odd things like this and it is easy to test.