Hi. I'm David, and I'm happy to help you.
Note that gettext_x64r.dll is not a Windows system file, but a library used by specific third-party applications and games (often related to language localization).
To be able to assist you better, please clarify the following:
- Does the error appear immediately upon starting Windows, or only when you try to open a specific application/game?
- If it's when you try to open a specific application/game, which one displays this error message when run?
- Do you use any third-party antivirus software (such as Avast, Kaspersky, or McAfee) in addition to Windows Defender? If yes, which one?
- When checking the Protection History in Windows Defender (or your antivirus software), is there any record of a quarantined or blocked file from the same date as the update?
Looking forward to your reply.