0x80090306 Error on Windows: 7 Ways to Fix It
The 0x80090306 error is one of the most common Windows errors. It typically appears during Windows Update, system setup or when installing drivers, and it is usually caused by corrupted system files, blocked services or network problems. Follow the fixes below in order; most users resolve it within 30 minutes.
What causes the 0x80090306 error?
The 0x80090306 error usually points to damaged Windows Update components, incorrect system time, a full system drive or security software blocking the connection. Occasionally it follows a failed update that left services in a half-configured state.
Fix it now
1. Reset the Windows Update components
Open Command Prompt as administrator and run: net stop wuauserv, net stop cryptSvc, net stop bits. Then rename the SoftwareDistribution and Catroot2 folders, and restart the services with the matching net start commands.
2. Run System Restore
If the error started recently, restore Windows to a point before the problem appeared via Control Panel > Recovery > Open System Restore.
3. Use the Media Creation Tool
For persistent errors, download the Windows Media Creation Tool and choose 'Upgrade this PC now'. It keeps your files and apps while repairing the OS.
4. Check your system date and time
A wrong system clock breaks secure connections and can trigger update errors. Set time and time zone to automatic in Settings > Time & Language, then sync.
5. Run the Windows Update troubleshooter
Open Settings > System > Troubleshoot > Other troubleshooters and run the Windows Update troubleshooter. It automatically detects and repairs the most common update problems.
Related guides
Frequently asked questions
The fixes here keep your files. The Media Creation Tool repair reinstalls the OS, but it keeps your files and apps.
Most cases take under 30 minutes. SFC and DISM scans can take longer depending on disk speed.
No. It is a software-level error that prevents an update or feature from running. It will not damage your files or hardware.