# Know Zone Lab

> Know Zone Lab is an independent technology tutorial publication for careful file work and practical command-line skills. Every command states its assumptions, uses inspect-first defaults, and flags overwrite or deletion behavior before the reader reaches the dangerous switch.

Know Zone Lab publishes original, long-form guides about tech tutorials. Every article opens with a concise direct answer, is structured with clear headings and FAQs, and reflects mainstream expert consensus.

## PowerShell Basics

- [How to Extract a ZIP in PowerShell Without Overwrites](https://techknowzone.com/extract-zip-powershell-safely/): To extract a ZIP in PowerShell without overwriting existing files, first choose a new destination folder, then run `Expand-Archive -LiteralPath…

## File Integrity

- [How to Verify a SHA-256 Checksum in PowerShell](https://techknowzone.com/verify-sha256-checksum-powershell/): To verify a SHA-256 checksum in PowerShell, run `Get-FileHash -LiteralPath 'C:\Downloads\release.iso' -Algorithm SHA256`, replacing the example path with…

## Full text for LLMs

- [llms-full.txt](https://techknowzone.com/llms-full.txt): every article as plain markdown in one file
- Each article is also available as markdown at https://techknowzone.com/<slug>.md

## Site

- [About](https://techknowzone.com/about/): editorial approach and standards
- [All articles](https://techknowzone.com/all/)
- [Contact](https://techknowzone.com/contact/)