Microsoft activation servers reject activation requests if your system clock is out of sync. Right-click the time display in your taskbar. Select . Toggle Set time automatically to ON. Click the Sync now button under "Synchronize your clock". 2. Clear Existing License Keys via Command Prompt
: Security software or VPNs blocking the specialized URLs used for license verification.
The Client-Licensing Service's internal cache holds damaged activation tokens.
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He checked the —the most common silent killer of licenses. They were synced to the millisecond.He cleared the Store Cache ( wsreset.exe ), hoping a quick digital palate cleanser would fix it. The error returned, unmoved.He dove into the Event Viewer , wading through thousands of logs until he found the culprit: a corrupted "Software Protection Service" that had decided to stop talking to the hardware. The Turning Point
If you have tried all the steps above, as a last resort, try creating a new local user account to determine if the issue is with your user profile.
Licensing servers reject requests if your local system time varies from the server time by even a few minutes. Press Windows Key + I to open . Click on Time & Language , then select Date & Time . Toggle Set time automatically to ON . Toggle Set time zone automatically to ON . Click the Sync now button under "Synchronize your clock." 2. Reset the Microsoft Store Cache Toggle Set time automatically to ON
A broken installation of the underlying framework that powers Xbox Play Anywhere and Game Pass titles. Step-by-Step Solutions to Fix Error 0xc03f6601
Open the app. Click your profile icon in the top right and ensure your primary purchasing account is signed in.
Run the deployment image tool first by typing: DISM.exe /Online /Cleanup-image /Restorehealth Press Enter and wait for it to reach 100%. Next, type the system file scanner command: sfc /scannow Clear Existing License Keys via Command Prompt :
If using a VPN, licensing checks may flag your account for location mismatches. Temporarily disable your VPN or use split-tunneling for the Microsoft Store app during software installations.
Open Command Prompt as Administrator and run:
Network blocks prevent the client from reaching the Microsoft License Verification Server . How to Fix Error 0xc03f6601 Click on Time & Language
Microsoft offers an automated tool called the .