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Solved
Power Query Unexpected Error
Beginning with Windows Update 8/16/25, all of my data queries do not function. They now give splash screen "Unexpected Error" with detail showing 'access denied'. This is true for api requests as w...
Root Cause: Windows Update (8/16/25) likely changed security settings, blocking Power Query from accessing APIs and local files.
Quick Fixes:
- Run Power BI/Excel as Administrator
- Disable Controlled Folder Access in Windows Defender
- Check file/folder permissions
- Try a Clean Boot to rule out third-party interference
System Restore Blocked: Use DISM /RestoreHealth and sfc /scannow to repair system files.
Want a PowerShell script to check all this in one go? I’ve got you.
V-yubandi-msft
Community Support
Community SupportHi stb628 ,
Could you let us know if your issue has been resolved or if you are still experiencing difficulties? Your feedback is valuable to the community and can help others facing similar problems.