Without thinking more just take SysInspire 7z password recovery software which is a nice utility for recover 7z password that capable for remove lost 7z any type without any critical problems. Attempt the free Demo Version of this tool to recover the initial 3 letters of the password.More info:- Recover 7z password
Remove Password from 7z file easily by utilizing 7z Password Recovery Software by brand eSoftTools that can solve any kind of simple or complex Password sequence with efficiency with the support of recovery processes, like, Brute Force Attack, Mask Attack, and, Dictionary Attack. A free Demo pack of these tools can be used by anyone that can recover the primary 3 letters of the password.
Read more- Remove Password from 7z file
Use best PassFixer 7z password recovery software which gives a free demo to recover 7z file password without any lost data applying by three method Dictionary Method, Brute Force Method, Mask Attack and supported all Windows versions - 10 (32-bit, & 64-bit), Win 8.1, Win 8, Win 7, Win XP, & Win Vista. This software is able to recover all Possible combination Password from the 7z file.