# Harden Windows Host

### OS Installation

Use my [autounattended ](https://github.com/0xPThree/windows-autounattended?tab=readme-ov-file)file for a minimal, non-bloated, Windows installation. 

### Yubikey

1. Download [Yubikey Windows Software](https://www.yubico.com/products/computer-login-tools/).
2. Install and reboot device. Login with previous credentials.
3. Run Yubico Login Configuration software. Advanced > Use existing (Slot 1 for G1, Slot 2 for G2)

### BitLocker

1. `gpedit.msc` > `Computer Configuration/Administrative Templates/Windows Components/BitLocker Drive Encryption/Operating System Drives`
2. Require additional authentication at startup: Enabled. \
   Configure TPM startup PIN: Require startup PIN with TPM
3. Run CMD as admin. `manage-bde -protectors -add c: -TPMAndPIN`
4. `manage-bde -status`
5. Reboot when 100% encrypted.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://0xpthree.gitbook.io/notes/development/windows/harden-windows-host.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.