Microsoft 365 Apps Stability Update: Resolving Crashes During Use
In a recent development, Microsoft has addressed a significant issue affecting its suite of applications within Microsoft 365, including Outlook, Word, Excel, and OneNote. Users have reported unexpected crashes while typing or utilizing the spell-check feature.
Affected Versions and Identification
This problem primarily impacts users operating on Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, and OneNote for Microsoft 365 who are using Version 2407 Build 17830.20138 or later. To determine if they are experiencing this issue, customers can check the Windows Event Viewer Application Log for Event IDs 1000 or 1001 accompanied by exception codes of 0xc0000005.
Cause of the Issue
According to Microsoft’s explanation, these crashes stem from discrepancies between the proofing tools associated with Office 2016 and the language packs installed on affected systems when those language packs have not been updated to their latest versions. The company noted that remnants from previous installations or migrations may lead to conflicts.
“These proofing tools likely originate from earlier installations or as part of an Office suite transition,” stated a representative from Redmond when acknowledging this bug last month. “Running Office 2016 alongside M365 apps is unsupported due to differing installation technologies.”
The specific module causing faults can vary based on installed language packs; examples include mscss7it.dll for Italian users and mscss7de.dll for German users.
Updates Available
Microsoft has rolled out fixes in several builds of its applications:
- Beta Channel: Version 2409 (Build 18021.15000)
- Current Channel Preview: Version 2409 (Build 18025.20000)
- Current Channel: Version scheduled to release on September 24th (Version 2409 Build 18025.20000)
To ensure optimal performance after these updates are applied, users are strongly advised to uninstall any existing Office 2016 proofing tools if they have upgraded their version of Office and instead install the corresponding Office language packs which will automatically update during regular application updates.
Troubleshooting Persistent Issues
If issues persist even after updating to the fixed builds—resulting in continued crashes during typing or while using features like spell check—users should perform an online repair of their Office applications by following this procedure.
!Online Repair Process
Image depicting online repair process in Microsoft 365 apps.
Should problems continue with crashing apps post-repair attempts, it may be necessary to uninstall and then reinstall any problematic language pack by adhering closely to instructions found here, specifically under “Step 2: Configure Microsoft 365 Language.”
Additional Support Measures
Last month also saw Microsoft’s release of temporary solutions addressing other known issues such as those causing Outlook crashes upon startup as well as complications related to Gmail sign-in processes within classic Outlook environments.
By staying informed about these updates and following recommended troubleshooting steps diligently, users can enhance their experience with Microsoft’s productivity suite while minimizing disruptions caused by technical glitches.
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