Also ... Is Recuva unable to recover files over 4 GB?
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Windows 7 64bit | Recuva Version 1.44.778 for Win 64bit
How's this for ironic --- while attempting to back up a massive amount of my date; I just lost an even larger amount.
I'm sorry this got a little long, but please read through. Thanks!
I recently aquired a Western Digital My Passport for Mac, 2 TB External, Portable (2.5") USB Hard Drive (that I formatted NTFS) and I used this to backup 161 GB of my most sensitive data and have since been using it to store newly created video content in what was its vast amount of remaining free space. In the last two months, I'd just about filled the thing -- it only had about 90 GB of free space remaining this morning.
Everything I added to the Passport Drive was finished data I had no need to mess with further (apart from viewing it) -- so fragmentation should be nearly non-existent on this drive if Windows was in any way sensible about the way it wrote down the data. Apart from ocassionally renaming a few of the files, or "cutting and pasting" them to a different folder on the same drive (which I'm almost certain doesn't move the data at all) -- I haven't messed with any of the files once I've dropped them on the passport.
I did however consistently delete the originals from the internal hard disk where they were first created and collected for space saving reasons. Until today, there were no backups of the video content (over 1.7 TB's worth) on that Passport.
So today I've been digging up all the old drives I can find and trying to copy the video files from the Passport over onto the old drives. None of them are large enough to hold all the content, however, and some had other data I couldn't delete, so I've had to backup the video data in chunks.
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Well, tonight after three long attempts (my computer kept freezing) I finally succeeded in backing up the first 1,100 GB or so of the video content to one of the old drives when diaster struck.
Here's how it went down:
My computer had been left unattended while the copy was taking place -- copying from one external hard drive (the My Passport 2TB) to another external hard drive (a Seagate 1.5 TB 3.5" internal desktop drive in an external enclosure) with both connected to my 6 year old Dell Inspiron 1720 laptop via US 2.0 (the Ispiron lacks the USB 3.0 capability of the My Passport) takes a very very long time.
When I checked to find the process had finally completed, everything looked excellent. I'd just about filled the 1.5 TB external drive; and only had 600 GB or so of files left to find space on other hard drives for (if I could find it at all!).
One thing I do after copying data is check to make sure the folder properties of the source and destination directories match up -- same number of files, same number of folders, same total number of bytes. I'm pretty sure that went well.
I'm a little fuzzy on what happened next.
At some point; it dawned on me that I can no longer right-click and see the option to "select all" in the folder properties menu anymore in Windows 7 (that I have been using nor for, I don't know, 2 or 3 years?) and for some reason this really bothered me --- I've got CDO. It's like OCD, except the letters are in alphabetical order, like they ougt to be. So anyways .... I got momentarily distracted and did a quick google search and found a simple little regedit file that I could add to the registry to restore the feature. I added it, and it worked. No big deal.
However, when I next navigated to the folder on the Passport drive where I'd been copying the data from (which I did immediately), the entire directory was blank!!! There was nothing at all in the folder!! 528 folders -- gone!
The passport drive now shows "1.10 TB Free Space of 1.81 TB" where it ought to show only about 90 GB (i.e 0.09 TB) free space, Over 1 TB of data just disappeared in an instant without even a puff of smoke!
PANIC!
I haven't a clue what I did. Maybe I somehow accidentally hit both the "Control-A" hotkey on my keyboard (thanks, AutoHotkey!) and then "Delete" while focused on that directory, but I can't imagine how, because I was too lazy to get up and get the keyboard in the first place and that's why I went looking for the "Selct-All in Right-Click" fix. Maybe adding the registry keys while the entire directory was selected somehow nuked them? I just don't know.
But!! Luckily, I'd had the forethought to install RECUVA!
So I ran a scan with that.
But at somepoint I also opened the recycle bin (that I always empty incessantly -- my OCD again -- I even have a handly little AutoHotkey mod so I only need to hit the "Insert Key" to do it) and just 42 of my 528 missing folders were in there. Just 92 GB! That's only 9% of my missing data! I don't know why they wound up in the recycle bin and none of the others didn't; but that's that.
And want to know the worst part? All 42 of those folders were ones I had succesfully backed up. Not any were of the 193 I hadn't yet. Grrr!
***But hey, wait!! That's also just about how much free space my drive had before my data got nuked! Does that mean something??***
QUESTIONS:
When Recuva did its search, it did seem to find the vast majority of the files in the 528 missing folders.... but ALL fifty files larger than 4 GB (4,200,000 KB) were tagged RED and marked as "Unrecoverable | File's data could not be found on the disk." even though I haven't written anything to the disk at all since before the files went missing. The rest are green.
Is Recuva truly unable to recover files larger than 4 GB?
and
If I attempt to recover 528 folders totallying something like 1 TB of data in place (I don't have anywhere else to recover the data) will Recuva simply fix the MFT record (or whatever) and make the files visible again, or attempt to rewrite the data elsewhere on the disc in "free space" and thus destroy everything it is trying to save? I couldn't tell exactly from the documentation.
If Recuva can't restore in place, like I think maybe the Recycle Bin does, is there any other tool that can?
Thanks for your time and assistance!