V1.3.10b — 8 - Oem Recovery Partition Creator

1. Overview OEM Recovery Partition Creator v1.3.10B is a lightweight, command-line and GUI hybrid utility designed for system integrators, OEM technicians, and advanced IT administrators. It automates the creation of a hidden, bootable recovery partition on Windows-based systems. This partition stores a factory system image (typically WIM, ESD, or FFU format) and enables one-key recovery functionality without requiring external installation media.

| Partition # | Type | Size | File System | Purpose | |-------------|------|------|--------------|---------| | 1 | EFI System | 100 MB | FAT32 | Bootloader | | 2 | Microsoft Reserved | 16 MB | None | MSR | | 3 | Primary OS | 200+ GB | NTFS | Windows OS | | | OEM Recovery | 12 GB | NTFS | Factory image + WinRE | Note: The recovery partition is marked with the GPT_ATTRIBUTE_PLATFORM_REQUIRED (ID: 0x0000000000000001 ) attribute to prevent accidental deletion by Disk Management. 6. Troubleshooting Common Issues 6.1 "Insufficient contiguous free space" Cause: The primary partition cannot be shrunk due to immovable files (paging file, hiberfil.sys, or MFT fragment). 8 - OEM Recovery Partition Creator v1.3.10B

| Switch | Parameter | Description | |--------|-----------|-------------| | /source | path | Full path to recovery image file. | | /drive | letter | Target system drive (e.g., C: ). | | /size | MB or GB | Size for recovery partition (e.g., 8192MB , 12GB ). | | /label | text | Volume label (max 11 chars for FAT32). | | /hotkey | F1-F12 | Hotkey to invoke recovery at boot. | | /timeout | seconds | Boot menu timeout (0-30). | | /force | – | Suppress warnings and non-critical prompts. | | /verify | – | Perform image hash check before writing. | After execution, the disk layout typically appears as: This partition stores a factory system image (typically

RecoveryPartitionCreator.exe /source:"D:\Images\factory.wim" /drive:C: /size:12GB /label:"RECOVERY" /hotkey:F11 /timeout:5 /force Troubleshooting Common Issues 6