Attaching a string to a user how?

Question

Hard disks

Good afternoon,
please tell me how to organize this structure,
1 there is a field where the user enters an identifier (conditionally) and presses the button to go
further, he is assigned a different identifier from the database or from a text file (now in txt
how to implement this miracle, tell me who has come across or maybe knows I will be very grateful for any kicks in the right direction)))

Answer 1

For data security, make a full byte-by-byte copy of the disk.
More or less like this:
Further work only with a copy of the data. In order not to aggravate the state of the emergency disk.
When the data is saved, you can try to restore the disk, find out its status, and so on.

Answer 2

First, check the status of the disk, as previously written
https://crystalmark.info/redirect.php?product=Crys...
To understand whether it will be possible to continue using the disk. There will also be an understanding whether you can recover the data yourself or you need to contact a specialized service.
Judging by the RAW file system, the partition table has flown.
Just in case, it is advisable to make a copy of the damaged partition (as mentioned earlier, although under windows this command will not help you, especially if you are not friends with the console, you can get confused), you can use the free version (if there is a disk for copying the partition)
www.disk- image.com/downloads/DiskImageFreeSetup.exe
To recover data, you can try to scan the damaged partition (copied to another disk) with one of the following programs:
Getdataback (paid)
Rstudio (paid)
Active file recovery (paid)
Recuva
PhotoRec (it's console, but free).
If one program doesn't help, try another.
There is also an option to check the disk for a backup copy of the file system table using the testdisk program (free, console, from the creator of photorec). But judging by the fact that the system began to load more slowly, it is possible that the disk began to fail in hardware, and it is better not to use this option.

Answer 3

try to see disk health with CrystalDiskInfo

Answer 4

You put WinHEX, see if your disk opens in it. Does he see sections and Old.
If you see it, copy what you need. If not. you can try the utilities above.
well, Victoria473b to check for bads.
chkdsk sometimes makes things worse. I did not risk on important data. Well, yes. a disk clone would be desirable before experiments.

Answer 5

The first kick, in the direction of the Russian language textbook, namely, the grammar section. Because it is not clear from the question what exactly needs to be implemented!
DB storage? Identification of the logged in user? A closed zone, a la the entrance to the admin panel?