Failed To Boot In The Test Veracrypt 1.21 Full Disk Encryption

[Loren Von Moren]

Okay ill explain all i have issued about my error+ my error.
I try to full disk encrypt my Acer Aspire E15 laptob 2 times, First time i complete all the steps, i store the Zip EFI .rar to 2 encrypted USB + One Encrypted External Hard Drive, so i have 3 copys if something goes wrong, i just go to test and i advice thath in the BIOS the secure mode was enabled, i just put on my pc i say to veracrypt warning to "NO" so it unistall all it was installed( i mean of encryption, not the program).

And i try it again, i use another encryption algoritm these time the "Kuznyechik" one, from 2015 with SHA-256 Hash.
These time in BIOS was secure mode disabled, i just complete all steps in Full Disk Encryption, I go to TEST, and these time when it was restarting, in the first Acer load( like the first screen you see in your pc is from samsung or whatever, mine is acer) i was in thath screen, in the screen i have to press F2 to get into the BIOS, so, i heard a little sound like something goes wrong, the laptob switched off and restarted again, he dosnt request me any Veracrypt Password.

So I open Some reddit post for check if someone can help me, one guy does but it goes ofline after some time and i didnt manage to do it yet.
These are both post i opened.
https://www.reddit.com/r/VeraCrypt/comments/6rmrja/veracrypt_isnt_compatible_in_my_w10/

https://www.reddit.com/r/VeraCrypt/comments/6rkyj9/questions_about_full_disk_encryption/

also i found a guy thath has the same problem than me back in 2015/2016, in acer forums, but my english level isnt enough to understand what he exactly does, like him, i have 4 partition( it comes like these my acer i didnt do) in my C:// if someone knows a solution , i hope i can encrypt it, thanks.

http://community.acer.com/t5/E-F-V-and-M-Series-Laptops/System-encryption-with-Veracrypt/td-p/391628

This guy did these: "I just ran into this. I had to make sure Secure Boot was disabled in the bios. Then in another area there is the option to Launch CSM. You want this enabled. It will then set things to legacy boot. I did have to use Macrium Reflect rescue/usb boot to fix boot problems to ensure that it wrote the mbr to the partition. Once all this was done I was able to encrypt the drive.

The two part disabling of UEFI is what threw me for a long time."

It has the same laptob as me, and i already do a backup with Macrium Reflect of my whole PC before trying to encrypt just if something goes bad, i have full backup.

[Alex]

Hidden volume and full disk work the same on EFI. see details: https://sourceforge.net/p/veracrypt/discussion/technical/thread/f90bcf05/

[Loren Von Moren]

sorry im pretty new, what these means? ¿? What i have to do to keep it working?

[Loren Von Moren]

Noone can help?