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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

How to Find the Windows Activation Log File in Windows 11

If Windows 11 shows an activation error or you need to check activation history, the activation l...

How to Fix Microsoft Teams Migration Tool When It Stops Working

If you’re migrating data to Microsoft Teams and the migration tool stops responding, fails to con...

How to Restore Deleted Files and Chats in Microsoft Teams

If you accidentally delete a file or chat in Microsoft Teams, recovery is possible but depends on...

How to Fix DNS Probe Finished NXDOMAIN on Chrome (IPv4/IPv6)

You're browsing in Chrome and suddenly see "DNS probe finished NXDOMAIN" — meaning the domain nam...

How to Fix DNS Errors When Setting Up Outlook

You're trying to add an email account to Outlook and get a DNS error—something like 'The connecti...