Fallout 4 stuck in windowed mode

[Congee King]

Can't get it to go full screen. I had this game before and it worked fine, but after i reinstalled this game yesterday it stopped going into full screen. I tried reinstalling the game, verifying integrity of game files and restarting my computer, noting works.

Here is a video i made about my problem please take a watch: https://www.youtube.com/watch?v=hqxph9KYnOY&t=1s

[Dank]

going threw the same ♥♥♥♥♥♥♥ ♥♥♥♥♥♥ prob

[My Name Is Barry]

Found the fix!
find your folder C:/User go into My Documents/My Games find Fallout 4
Open the file Fallout4Prefs with notepad
double check that iSize H=xxx matches your resolution (1080 for 1080p) and iSize W=xxx (1920 for 1080p width)
bFull Screen=1
launch the game and double check with the launcher settings that windowed and borderless modes are unchecked, and that your resolution matches what you've put into this file, also be sure to adjust graphics settings here just in case they've been changed.
lastly, right click on the file and make sure it isn't set to Read-Only

messing with my file to re-unlock my framerate so my G-Sync worked cause this windowed mode issue for me, and this was my fix. Mileage may vary, but I hope that I can help everyone with this.

[Salami Lid]

Originally posted by My Name Is Barry:

Found the fix!
find your folder C:/User go into My Documents/My Games find Fallout 4
Open the file Fallout4Prefs with notepad
double check that iSize H=xxx matches your resolution (1080 for 1080p) and iSize W=xxx (1920 for 1080p width)
bFull Screen=1
launch the game and double check with the launcher settings that windowed and borderless modes are unchecked, and that your resolution matches what you've put into this file, also be sure to adjust graphics settings here just in case they've been changed.
lastly, right click on the file and make sure it isn't set to Read-Only

messing with my file to re-unlock my framerate so my G-Sync worked cause this windowed mode issue for me, and this was my fix. Mileage may vary, but I hope that I can help everyone with this.

Im having the same problem. doesnt work for me

[THE DEVIL]

dont work how to fix this full screen !!!!!!!!!

[THE DEVIL]

AAAAAAAAAAAA!

[Master_Leseter88]

Originally posted by My Name Is Barry:

Found the fix!
find your folder C:/User go into My Documents/My Games find Fallout 4
Open the file Fallout4Prefs with notepad
double check that iSize H=xxx matches your resolution (1080 for 1080p) and iSize W=xxx (1920 for 1080p width)
bFull Screen=1
launch the game and double check with the launcher settings that windowed and borderless modes are unchecked, and that your resolution matches what you've put into this file, also be sure to adjust graphics settings here just in case they've been changed.
lastly, right click on the file and make sure it isn't set to Read-Only

messing with my file to re-unlock my framerate so my G-Sync worked cause this windowed mode issue for me, and this was my fix. Mileage may vary, but I hope that I can help everyone with this.

yea ive tried those method and i also use the configuration tools mod , but it still didn't work. Plus the configuration tools mod changed the modified and turn it to default evertime i save it.

[THE DEVIL]

this still dont work

[Cunny As ♥♥♥♥ UwU]

Originally posted by MINOKEDATI:

AAAAAAAAAAAA!

if you are using windows 11 then reinstall your pc to windows 10. It works for me