(NVIDIA, AMD, Intel) from the official website— not just Windows Update .

Open the Windows Start menu, type , and press Enter.

Because MSI App Player utilizes the BlueStacks 5 engine, you can download the latest, fully patched BlueStacks engine directly from the BlueStacks Official Website to bypass the 5.9.300 bug entirely. Optimizing the Engine Post-Fix

Open AMD Software: Adrenalin Edition and download the latest stable driver.

🛠️ MSI App Player Error 59300 – Fixed + Safe Download Link

Open Windows Security, go to > Core Isolation , and toggle Memory Integrity to Off . 2. Perform a Clean Reinstallation