Fix Diablo IV Not Launching, Crashing, Freezing & Black Screen On PC
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Step 1) Install/Uninstall High Resolution textures
Step 2) Allow the game exe file to your antivirus program and Windows Defender Firewall
Step 3) Disconnect multiple monitors, disconnect additional Controller, disconnect Hotas, pedals, steering wheel, joystick, Logitech wheel, Razer Tartarus gamepad, vjoy unplug all the USB devices, turn off Razer Synapse (razor lighting effects) and MSI Dragon Center, corsair software, end nahimic services & lightingservice.exe in task manager, remove the undervolt
Step 4) Run the game as an administrator from the game installation folder, also try running the game in compatibility mode
Step 5) Verify the game files
Step 6) Do a clean installation of graphics driver
https://www.nvidia.com/en-us/geforce/drivers
https://www.amd.com/en/support
Step 7) Run the game on dedicated graphics card
Step 8) Increase the Virtual Memory:
View Advanced system settings
Initial Size: 1.5 x Total Ram
Maximum Size: 3 X Total Ram
Step 9) Close all the overlay apps, close all the overclocking application, perform clean boot
Step 10) Install Visual C++ Files https://docs.microsoft.com/en-US/cpp/windows/latest-supported-vc-redist?view=msvc-160
Step 11) Update your Windows
Step 12) If able to launch the game, try windowed mode, turn off NVIDIA Reflex Low Latency and lower down graphics settings
Step 13) Update System BIOS
Step 14) Use Google DNS Server
Type network connections
Preferred 8 8 8 8
Alternate 8 8 4 4 or 1.1.1.1 or 1.1.1.2
Step 15) Make sure date, time, time zone and region are correct on your computer
Step 16) Perform Power cycle- Shut down your computer, unplug the power cable, press & hold the power button ON PC for few seconds, turn off WIFI router, wait for few seconds and restart your WIFI router and then restart your computer
Step 17) Run these commands
ipconfig /flushdns
ipconfig /release
ipconfig /renew
netsh winsock reset
netsh int ip reset
netsh interface ipv4 reset
netsh interface ipv6 reset
netsh interface tcp reset
Step 18) Use Ethernet connection
Step 19) Uninstall and reinstall the game to the different drive (Try SSD first)