> Source: [sk180087](https://support.checkpoint.com/results/sk/sk180087)

# sk180087 - On second reboot, after FDE installation, computer fails to load Pre-Boot

| Property | Value |
|----------|-------|
| Solution ID | sk180087 |
| Date Created | 2022-10-04 |
| Last Modified | 2025-03-14 |
| Technical Level | Advanced |
| Products | Endpoint Security |
| Versions | E89.X, E88.X |
| OS | Windows |

## Symptoms

- * On second reboot after FDE installation, the Pre-Boot screen does not show.
* The computer boots to the PXE boot screen and is only accessible by Recovery Media.
* Machine boots to error: "Secure Boot Violation. Invalid Signature Detected. Check Secure Boot Policy in Setup."
* Disabling **Secure Boot** allows the computer to boot into OS, but FDE does not start encryption.
* Disabling **Secure Boot** before FDE installation allows the computer to boot and install FDE normally.
* **FastBoot Bios Setting** is not present as based on [sk140215](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk140215).
* **Fast Startup** is disabled from the Control Panel in **Power Options**.

## Cause

The settings in BIOS **Allow Microsoft 3rd Party UEFI CA** is disabled.

## Solution

This solution requires authentication. Please log in to view the full solution.

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content