If the file is physically gone and verification fails, you may need to manually place it in the game directory. .../Splinter Cell Blacklist/src/system/
Fixing the (often searched as uplayr1dll) error is the most common hurdle for players trying to run Splinter Cell Blacklist in 2021 and beyond . This error typically triggers a "System Error" or "File Not Found" message, preventing Sam Fisher from ever leaving the loading screen.
Turn off the Ubisoft Connect in-game overlay, as it frequently causes crashes on modern GPUs.