Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.
Work through these checks
0 of 4 complete01Manually update root certificates in Windows
- Manually update root certificates in Windows
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
02Reset cryptographic services folder via Command Prompt
- Reset cryptographic services folder via Command Prompt
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
03Run SFC tool to verify system driver directories
- Run SFC tool to verify system driver directories
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
04Configure network credentials to bypass proxy blocks
- Configure network credentials to bypass proxy blocks
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
Possible causes
- Outdated Windows root certificate database
- Corrupt cryptographic store components
- Malicious or self-signed driver certificate override
- Network proxy SSL redirection interferences
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