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

Fix Windows Search 404 Error by Rebuilding the Index

When Windows Search throws a "404 error" or returns no results, the search index is often corrupt...

How to Avoid Microsoft Teams Rate Limits

If you use Microsoft Teams extensively—especially with bots, automation, or custom apps—you may h...

BitLocker Recovery Key Not Accepted: Fix Authentication Failed Error

Fix Windows Defender Real-Time Protection Turned Off & Connection Refused

You open Windows Security and see real-time protection is off. Trying to turn it on fails with a ...

How to Disable Remote Desktop Certificate Warnings

When connecting to a remote desktop, you may see a warning that the remote computer's identity ca...

Fix Windows Security Locking Files as Antivirus Threats

You open a file you've used for months, and Windows Security blocks it, claiming it's infected. O...