The product was unknown to me, and that's exactly why I started a thread asking for others' opinions about it.
The product's official site was in Russian, so I posted a link going to a download site in English.
However, I just found that the official site can be changed to English.
They may have been referring to 'fixmbr' & other CMD MBR-repair tools that can be accessed from a Windows Install media (USB, CD).
Here's some info about it: Restore, Fix, Repair Master Boot Record (MBR) in Windows
I already knew about Bootrec.exe long ago, but the problem is whether it can repair a master boot record modified by ransomware.
How about the /fixboot parameter within bootrec? I believe it writes a new MBR which would replace the infected MBR.
as I've said Many times - almost to the point of AD NAUSEAM
1) Immediately SWITCH off computer -- don't even power down via the power off control panel --simply unplug and if using a laptop keep power off switch held until computer powers off.
2) Restore from CLEAN backup.
Don't be bullied into buying a load of "Bovine Scatology" from some of these 3rd party A/V vendors who are making a last ditch attempt to part you from your money.
Optionally if you are MEGA paranoid you can re-format HDD before restore -- or even Hard erase with those programs that write Hex '00' to every sector on HDD.
Things like Macrium have FREE bootable restore programs and there are a load of other (free) bootable programs that can format / secure erase / re-partition HDD's.
I really can't see ANY need to use anything other than the standard Windows Defender PLUS HUMAN BRAIN
SCAMS usually can't be defended by Software anyway - and NEVER EVER be lulled into a false sense of security because you've installed some A/V software that "Says 100% secure".
All those using this pile of CRUD -- can you name a SINGLE High security Prison that NO ONE has ever escaped from. (OK people might get recaptured later - but that's a different argument).
THAT'S the whole point of booting a secure erase program from an external device to format the HDD's and then restore your backups.
If you don't take backups - then ask yourself - should I really be using a computer. And take and check backups REGULARLY - don't do the job once and think its all over.
It's a bit like a car driver saying why do I need a mirror - who cares what's behind me as I'm in front !!!.