If you are on the same boat, dont fret!
This troubleshooting post onMiniTool Websitewill show you some tips and tricks to deal with this annoying issue.
This error is just a connectivity issue so it is not difficult to tackle.

You will find satisfying solutions to address it in the following content.
How to Fix Valorant Error Code 19 Windows 10/11?
Valorant error code 19 Windows 10 is no exception.

Right-click thetaskbarto choose to openTask Manager.
InProcesses, find all Riot-related processes, right-click each of the programs and chooseEnd taskin the drop-down menu.
PressWin + Rsimultaneously to open theRundialog.
Typemsconfigand hit Enter to openSystem Configuration.
In theServicestab, tickHide all Microsoft servicesandDisable all.
Go to theStartupsection, and click onOpen Task Manager.
Right-click each system and chooseDisable.
Go back to the services tab, clickApply&OK.
TypeValorantin thesearch barto locate the game.
Right-click it and hitRun as administrator.
Typecmdto locateCommand Promptand right-click it to chooseRun as administrator.
Copy & paste the following commands in the black console and hitEnterafter each command.
ipconfig/flushdns
ipconfig/registerdns
ipconfig/release
ipconfig/renew
netsh winsock reset
Step 3. reboot your rig to see if Val 19 disappears.
PressWin + Rto open theRunbox.
Copy & pastecontrol /name Microsoft.ProgramsAndFeaturesinto the empty box and dont forget to hitEnter.
Look forValorantandRiot Vanguardand right-punch both of them.
In the drop-down menu, chooseUninstall.
After the installation process is done, go to theValorant Websiteto download the game again.
How to Fix Valorant Error Code 0xc0000005?
Here Are 6 Tricks!