This repack includes a fix for modern monitors. If your resolution looks stretched, check the Video settings in-game and ensure your aspect ratio is set correctly.
Simply unzip and play. Perfect for running off a USB drive or an external SSD. WoW Vanilla Client 1.12.1 Portable Free Download -REPACK
Also, disable "Fullscreen Optimization" (right-click WoW.exe → Properties → Compatibility). This repack includes a fix for modern monitors