No Audio After Windows 11 Installation
No sound after an upgrade is commonly caused by a missing OEM audio component, changed default device, or incomplete driver stack.
Quick Answer
Check the selected output device first, then inspect Device Manager and reinstall the OEM audio package if Windows loaded only a generic driver.
What to check first
Record exactly when the problem appears and disconnect nonessential peripherals. Check Device Manager, Windows Update state, free disk space and the recovery environment before changing several settings at once.
Step-by-step approach
Check the selected output device first, then inspect Device Manager and reinstall the OEM audio package if Windows loaded only a generic driver. Restart after each meaningful driver or recovery change so you can identify which action actually resolves the problem.
Recovery and safety
Keep backups and recovery keys available. Prefer reversible Windows recovery tools and known-good OEM drivers over destructive fixes or repeated forced installations.
Frequently Asked Questions
Should I reinstall Windows immediately?
Usually no. First isolate drivers, recovery state and hardware detection because many post-upgrade problems are recoverable without reinstalling.
Should I keep a backup before troubleshooting?
Yes. A verified backup or system image gives you a safe recovery point before changing drivers, firmware or boot settings.
By FlyOOBE Software Editorial Team · Published October 6, 2026 · Updated October 6, 2026