Error Database · Windows

0x80070426

Why Do Activation Errors Happen?

Seeing a string like 0x80070426 on your screen can feel alarming — but activation errors are far more common than most people realize. Millions of Windows and Office users encounter them every year, and the vast majority are resolved without buying new hardware.

These codes exist because Microsoft's licensing system is designed to verify who owns a key, where it can be used, and how many times it has been activated. A blocked key, a busy server, or a mismatched edition are technical checkpoints — not signs that your computer is broken. Understanding the code is the first step toward a fix.

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Software Protection Service Not Running

Error code: 0x80070426 Platform: Windows Updated: 2026-06-09

What This Error Means

Activation cannot proceed because the Software Protection (sppsvc) service is stopped, disabled, or failed to start. Without this service, Windows cannot read, write, or validate any license data.

Malware, aggressive system tweakers, and corrupted Windows updates often disable this service.

How to Fix It

  1. Press Win+R, type services.msc, find 'Software Protection'.
  2. Set Startup type to Automatic and click Start.
  3. If Start fails, run: sc config sppsvc start= auto && net start sppsvc in admin Command Prompt.
  4. Check Event Viewer → Windows Logs → Application for sppsvc errors.
  5. Run DISM and SFC repairs, then restart the service and retry slmgr /ato.