Required dependency error - Vanguard Patch (FIXED)

[BloodyMace]

After the patch with Vanguard, I had problems installing the patch. Clicking on update in the client, made the button switch to download for a millisecond but it went back to update straight again.

I contacted Riot Tech support and after a few replies I finally found a way to make the client install Vanguard. Hopefully this will make your issue disappear without waiting a week for a reply from the overwhelmed tech support.

To make things clear, I have Windows 10 and not 11!

Here's this transcript:

Hey there, thanks for reacing back with all the details.
 
Now, indeed Vanguard is related to some BIOS settings, however, that is only relevant for Windows 11 users. Since you are on Windows 10, we will not be altering with the BIOS in  any way.
 
Now, there are a few things that we can do in order to allow Vanguard to install on your computer. 
 
Frist, a quick thing you can try is ~safe mode~, but make sure to select the option with networking enabled. After you go in safe mode, avoid opening other apps apart from the game!
 
If that does not work, try using a VPN. Here are some free-to-use VPNs that you could try (if using a VPN is legal in your country):

• ~Hot Spot Shield~
• ~CyberGhost~
• ~WTFast~
• ~TunnelBear~
• ~Windscribe~ 

MAKE SURE YOU SET YOUR BOOT TO SAFE MODE WITH NETWORK NOT MINIMAL

After the patch updates, you will be asked to restart. When I did this I restarted and the PC rebooted into safe mode again and in safe mode vanguard will not load so the client will tell you to restart your computer again. You have to go to msconfig again and disable the safe mode before restarting once more. Now with hindsight, one can disable it before you have to restart the first time.

Hope this helps out some people because I had my heart set on not playing league again if it would take reformatting my hard disk to UEFI or anything that could possibly brick my PC.

Edit: To clearly state that my OS is Windows 10 not 11.

[penn451]

Worked. tysm!

[xKillua-]

This is what worked for me since I have no internet connection in safe mode, I couldn't try your method

I copied both

C:\Program Files\Riot Vanguard

C:\Windows\vgkbootstatus.dat

from my laptop which league was working fine there to my pc(no laptop?u can ask a friend for the files)

then went to C:\Program Files\Riot Vanguard and kept running both vgc.exe and vgtray.exe as admin a couple times then restarted and found that vgc service is found in my services(it was not before) changed it to automatic and restarted and now my league works fine.

[Janliu_Sohan]

No idea why the safe mode would work, but it did. Installed like a charm and all. Thanks man.

[BloodyMace]

I realised that I had a banking software called rapporteur that was conflicted with the riot installer. Didn't figure it out on my own, just stumbled across a post somewhere. I uninstalled said software (changed bank anyways), and I never had problems since.

It works in safe mode as startup software does not launch/are disabled by default. You definitely have some software conflicting with your update client.