Solved Lost logical drive after deleted a primary drive

[notis]

Hi everyone!
I have an external 931Gb Seagate disk.
I wanted 5 partitions and it came out with 3 logical drives and 2 primary (all healthy)
After an infection with ransonware I had to delete one from the 2 primary partitions but suddenly
at the same time got unallocate one from the 3 logical drives too, like if they was connected (?).
So I lost everything in it which there was very important backups not infected.
Is there an easy way to allocate again this logical drive and find again the files was in it?
Why happened this? Is it normal?
Thank you.

 

[notis]

Sometimes no words is the best explanation ! ...

 

[RolandJS]

Let's pretend the now-unallocated partition, which contains many many folders/files, was NTFS with allocation of 4096. I believe you can quick-format, not full format, this partition NTFS with 4096 allocation, and then try various software-based folder/file recovery utilities such as MiniTool Power Data Recovery, just to name one of many. Now, do you know what the format of the now unallocated partition was?

 

[notis]

Hi RolandJS.
Sorry for my last post (if I have to..) . I was not expecting someone will answer...
I'm in big troubles (all started from virus cerberus) but I blame only my self.
Ok. I have already make a partition in that unallocate area without to format.
Then I used EaseUs and it found all the files I need (even more -some deleted)
but they ask 80$ for unlimited use, otherwise they give only 2Gb for free.
So I'm now in this point. Thinking to pay or not.....
because the smalest file is 15Gb (important backup)
If you know a tool completely free it will be nice ...
..or any other idea.. cheaper one...

I really - really thank you and for the time you have spend.

 

[townsbg]

Recuva is free. https://www.piriform.com/recuva You need to be careful when recovering files from an infected system.

 

[notis]

Thank you townsbg.
I'll give a try. Ransomware Cerberus is a new very intelligent virus. Be careful all of you!
it passes from the most protection after encrypt all your data and then they ask you to pay with bitcoins 500$
for to send you the key to decrypt everything!
All your files .doc .txt .mp3 mp4 etc become with the extension .cerberus
So as I don't see this extension I trust that the file is ok. ...... at least hoping so....
Thanks for help and advice

 

[RolandJS]

notis, before deciding to spring for the Pro version of whichever recovery utility you believe will work the best for you, test a few of the already-recovered files, use originating programs which earlier created the new-recovered files -- make sure the so-far recovered files can be read, used, written to, saved [to an external media], and so on.

 

[notis]

ok. and thank you.
Of course backups I cannot check (or I buy and recover or I forget about ...-because are big files...)
and the most tools give just 1-2 Gb for free
Here I was asking about a logical drive with 4 clone-images in it (nothing else for checking...)
But thank you for your advice. I got it!
I've to be careful to don't give money for nothing