rubjonny Posted April 8, 2021 Share Posted April 8, 2021 (edited) As title. Spent hours and hours trying to figure out why Fallout NV wouldn't even launch. Uninstalled, Reinstalled, verified local files in steam, UAC is switched off, installed on my D: drive etc etc. Gave up. Reinstalled Fallout 3, checked it loaded which it did. Spent hours and hours installing a large mod list, only to find FOSE wouldn't work. More hours checking all the usual, no joy.I finally figured out the issue just now, its Windows Exploit Protection. To resolve: Right click start menu -> click settings Update & Security Windows Security Virus & Threat detection App & browser control Exploit protection settings Program settings Add program to customise -> Choose exact file path Browse to Fallout.exe Scroll down, Tick 'Force randomisation for images (Mandatory ASLR) and make sure its set to Off. Repeat for FalloutNV.exe, enjoy! Edited April 8, 2021 by rubjonny Link to comment Share on other sites More sharing options...
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