Loosing data randomly

I am still saving for a NAS build but I am having random folder drops, e.g. I had all of Adam Curtis's documentaries in a folder set and the folders exist and the video's are gone.

My Ram is new, my psu should be powerful enough for the hardware (But may not be) according to attempting to build it on pcpartspicker and comparing power draw. I know I have done another test but brain is mushy today.

And there are 4 non ssd and 2 ssd's harddrives and I am not sure how far the data corruption goes.

Any idea's? What is the safest and cheapest solution?

I have files from a few dead friends and loosing those would be the worst possible outcome.
Should I move files and pull a hard drive? Borrow an external is what I am leaning for but I am scared of loosing more data in some process?

well first off, shut down/unplug whatever you're trying to save

and then hook up the drive to a secondary PC and use something like recuva or Testdisk to recover all the data from the drive

Is that in your main PC or NAS?

It's probably just the hard drive

main pc, don't have a nas yet. And it seems to be occurring over multiple drives.

Will yank the ones I care about most now.

It's probably just that the directory/file path whats it that's getting is lost, not the data itself

If you have a 2nd PC you could hook up a drive there and dump some stuff to a flash drive

Okies will check, yanked all the non ssd's will swap them out with the houses second pc when my nephew finishes his gaming session and back up the essential data, I have 7tb in this rig which isn't smart. So I can't back up everything.

Thanks.

As long as you are not losing data you are fine. As for loosing data I don't know what the hell that is. : P

I have seen data corruption from bad ram and failing hd's this is not that, (RAM corruption is usually bad transcriptions, movies that start to skip/artifact, pics that get progressively more muddled as you shift them around for work) hd's get noisy or start to loose chunks), another option is to little power to the system so when all the hd's are going they kind of go mental and loose directory info. But this doesn't look like any of those (except maybe the power supply) hence why I asked. But IT is all about having fun new issues the first time then asking someone who has sorted the problem before.

So new pc, data recovery of essential files and then swapping out my psu will be my first goal.
Then back to saving for a nas solution as a urgent thing.
So my holiday will have to wait =S

EDIT: I reallllllly shouldn't have 7tb of hd's in my system but its been a fun year for my tech. My apartment got flooded in Sydney, drowning my computer my power boards and my sleep apnea machine, I woke up cause my sleep machine was trying to drown me by pumping water not air.

Then I moved to Perth and some nice person walked through my front door and stole my tablet, wallet, phone and car keys while i was eating lunch. Such a nice way to welcome me to a new city.

Oh and then my intel cpu bent its pins after a thermal paste replacement, to much moving it around and trauma..... life it really likes to keep kicking you sometimes.......... but meh now life is all nice touch wood and I am slowly getting everything sorted.

And I live in a nice house (with new security and a garden) as opposed to a flooding flat in Sydney =P so ... life, it's like that