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

How to Check PHP Memory Limit for Composer

If Composer fails with an error like Allowed memory size of X bytes exhausted, your ...

Fix Windows Defender File Locked During Scan

You run a Windows Defender scan and it reports that a file is locked and can't be scanned. This i...

How to Fix PowerShell DNS Errors in Windows

When PowerShell throws a DNS error—like "DNS name does not exist" or "Cannot resolve the server n...

Fix Windows Update Connection Timeout After Latest Update

You've installed the latest Windows update, and now Windows Update hangs or times out when checki...

Fix Windows Update 504 Gateway Timeout Error

You see a 504 Gateway Timeout error when checking for Windows Updates. This usua...

Fix SSH Permission Denied (publickey) on Raspberry Pi