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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 ,
I wanted to check in regarding your issue. Has it been resolved, or do you need any further information. Let me know if you’d like more details.
Thanks.