Knowledge base for software setup, errors, and daily tool work.

Fix Windows Security DNS Errors After a Windows Update

After a recent Windows update, you may see a DNS error inside Windows Security (formerly Windows ...

Fix BitLocker 'Cannot Access Drive Permission Denied' Error

Understanding the Error

You see 'Cannot access drive. Permission denied' when trying to o...

Fix BitLocker Authentication Failed with TPM Not Working

If BitLocker prompts for a recovery key or shows "Authentication failed" and TPM is not working, ...

Fix BitLocker Error 404 Not Found After a Windows Update

After a Windows update, some users see a BitLocker error that reads something like "Error...