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Fix Windows Activation Service Unavailable Error - Troubleshooting Error Code 0x80131500 in Microsoft Store-Troubleshoot BitLocker Recovery Key Not Accepted After BIOS Update

2026-06-13 18:09:11
Fix Windows Activation Service Unavailable Error - Troubleshooting Error Code 0x80131500 in Microsoft Store-Troubleshoot BitLocker Recovery Key Not Accepted After BIOS Update

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.