Hi Anton Sjöling,
Welcome to the Microsoft Q&A forum.
The message you're seeing usually appears when Windows detects a mismatch during early startup checks. When something changes unexpectedly, Windows may temporarily disconnect access to protect your files.
Here are some possible troubleshooting steps that you can consider trying:
1, Repair system files
- Open Command Prompt (run as Administrator)
- Run
sfc /scannow - Restart after completion.
2, Check TPM and Secure Boot
- Press Win + R > type
tpm.msc - Confirm status shows “TPM is ready for use”
- Restart and confirm Secure Boot is enabled in BIOS/UEFI.
3, Update firmware
- Install the latest BIOS/UEFI update from your PC or motherboard manufacturer.
- Update your SSD/NVMe firmware if available.
4, Refresh storage drivers
- Open Device Manager
- Expand Storage controllers
- Uninstall each controller (do not check “delete driver”)
- Restart and allow Windows to reinstall automatically.
If the behavior repeats after these steps, it may indicate a firmware or storage‑hardware condition.
Let me know if you need further assistance, feel free to ask me by clicking "Add Comment" or "Add Answer" if you cannot add comment so your response will be visible. Thanks for your effort.
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