Do you see any specific (like VAL 43 or Van 81)?
Close the launcher entirely. Open your System Tray (bottom right icons), right-click the Riot icon, and select "Exit." Then, relaunch as an Administrator. why is my valorant download stuck at 0
If you are using an external hard drive, try installing to an internal SSD. External drives often have connection timeouts that cause the "0 KB/s" bug. Reinstall Vanguard Do you see any specific (like VAL 43 or Van 81)