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

How to Fix Chrome Not Opening After Update

After a Chrome update, the browser may fail to open—no window appears, or you see a brief flash a...

Fix PostgreSQL Connection Refused on Port 5432

When you see psql: error: connection to server at ... failed: Connection refused on ...

Fix OneDrive Sync Stuck on Authentication

OneDrive frequently gets stuck on authentication when a user profile or cached credential becomes...

Fix Microsoft Store Token Expired Not Syncing Error

You open Microsoft Store and see a message that your token has expired, or apps won’t sync purcha...

Fix Chrome Proxy Server Error in Windows 10

If you see 'ERR_PROXY_CONNECTION_FAILED' or 'Proxy server is not responding' in Chrome on Windows...

Fix SSH Permission Denied (publickey) on Raspberry Pi