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Reading line numbers does not work in Microsoft Word #20085
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api/uiaFeature or bug requires an understanding of UIAFeature or bug requires an understanding of UIAapp/microsoft-officebugcomponent/UIA-ms-officeSpecific to UIA used in MS office applications.Specific to UIA used in MS office applications.p4https://github.com/nvaccess/nvda/blob/master/projectDocs/issues/triage.md#priorityhttps://github.com/nvaccess/nvda/blob/master/projectDocs/issues/triage.md#prioritytriagedHas been triaged, issue is waiting for implementation.Has been triaged, issue is waiting for implementation.
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api/uiaFeature or bug requires an understanding of UIAFeature or bug requires an understanding of UIAapp/microsoft-officebugcomponent/UIA-ms-officeSpecific to UIA used in MS office applications.Specific to UIA used in MS office applications.p4https://github.com/nvaccess/nvda/blob/master/projectDocs/issues/triage.md#priorityhttps://github.com/nvaccess/nvda/blob/master/projectDocs/issues/triage.md#prioritytriagedHas been triaged, issue is waiting for implementation.Has been triaged, issue is waiting for implementation.
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Brief summary
With "Line numbers" set in NVDA's document formatting settings, line numbers are only read in Word when UIA is set to "Only when necessary".
Steps to reproduce
Actual behavior
If Use UI Automation to access Microsoft Word is set to "Only when necessary" in NVDA's advanced settings, then line numbers are read.
If this is set to any other value, including the default "Where Suitable" then no line numbers are read.
Expected behavior
Line numbers should be read when "Line Numbers" is set in the document formatting setting.
NVDA logs, crash dumps and other attachments
No error recorded in the log
NVDA type
installed copy, portable copy
NVDA version
2026.1
Have you tried any other versions of NVDA? If so, please report their behaviors.
Latest alpha as at writing: alpha-55754,364c1095 (2026.2.0.55754) - Installed
NVDA 2025.3.3 (Portable)
NVDA 2024.4.2 (Portable)
It works exactly the same in all these versions, so I suspect it may be a change in Word.
Windows version
Windows 11 (64-bit) Version: 25H2, Build: 26200.8328
Name and version of other software in use when reproducing the issue
Office 365 (64-bit) Version: 16.0.19929.20106
Other information about your system
Also reported by a user in the NVDA User's Email group.
Does the issue still occur after restarting your computer?
I have restarted my computer and the issue still occurs
If NVDA add-ons are disabled, is your problem still occurring?
I have restarted NVDA with add-ons disabled and the issue still occurs
Does the issue still occur after you run the System Accessibility Repair Tool (COM Registration Fixing Tool in older versions) in NVDA's tools menu?
I have run the System Accessibility Repair Tool and the issue still occurs