FIX: Microsoft Flight Simulator X fatal error in Windows 10/11

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

Share this article

Improve this guide

Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more

Key notes

Microsoft Flight Simulator X is still among Windows’ mostbeloved flight games. Yet, some users have stated that afatalerroroccurrederror message pops up when they try to launch FSX.

Consequently, those users can’t get thegamerunning.

That same error message can pop up for users with the Flight Simulator X: Steam Edition or DVD version.

Update:Microsoft released the sequel title, Flight Simulator 2020 and many users reportedproblems with installing and running the game.

Six potential resolutions for Flight Simulator X fatal error

1. Get a new uiautomationcore.dll file for Flight Simulator X

2. Run Flight Simulator X in Compatibility Mode and as Administrator

3. Reinstall Flight Simulator X

4. Free up some RAM

5. Verify the Game’s Cache

6. Erase Flight Simulator X’s Log File

Some players have also stated that erasing FSX’s log file can fix thefatalerroroccurrederror. Note, however, that the log file stores all thegame’s pilot records.

To erase the log, open this path in File Explorer and delete the Logbook.BIN: C:UsersDocumentsFlight Simulator X Files.

Those resolutions might fix Flight Simulator X’sfatalerrorfor someplayers. However, they aren’t guaranteed to fix the issue for everyone.

Thisgame postalso includes further resolutions that could fix FSX: Steam Edition when it doesn’t run inWindows 10.

[wl_navigator]

FIX: Microsoft Flight Simulator X fatal error in Windows 10/11#

Six potential resolutions for Flight Simulator X fatal error#

1. Get a new uiautomationcore.dll file for Flight Simulator X#

2. Run Flight Simulator X in Compatibility Mode and as Administrator#

3. Reinstall Flight Simulator X#

4. Free up some RAM#

5. Verify the Game’s Cache#

6. Erase Flight Simulator X’s Log File#