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Windows 7 Sp1 Dualboot 31in1 Oem Esd Ptbr Jan May 2026

The custom setup menu often includes an option to:

  • Note for custom PCs: On non-OEM hardware, this will likely require a loader or manual activation.
  • Licensing:

  • Choose your architecture (x64 for any PC with 4GB+ RAM).

  • After loading files, you reach the 31in1 Edition Selection Screen. Scroll through the list:

  • Choose installation type: Custom (Advanced). windows 7 sp1 dualboot 31in1 oem esd ptbr jan

  • Driver Alert: If your NVMe SSD or USB 3.0 ports are not recognized, the custom ISO must have drivers slipstreamed. If not, you will see "No drives found." You either need a newer Jan release (with driver packs) or load drivers manually via Load Driver.

  • Partitioning: Create a partition. If dual-booting with Windows 10/11, create a new volume within unallocated space (do not overwrite existing OS partitions).

  • Click Next. The ESD decompression begins. This will take 30–60 minutes. The screen may appear frozen at 11% for a long time – do not restart. The custom setup menu often includes an option to:

    • The boot menu (via bootmgr) allows you to choose either the 32-bit or 64-bit version of Windows PE (Preinstallation Environment). From there, you select the specific edition.

  • Boot from USB:

  • Language Selection:

  • Choose the 31in1 Menu:

  • DualBoot Setup:

  • OEM Automation:

  • Post-Installation:

    • Many Brazilian techs use this 31in1 to test older hardware:

  • Why 31? It covers almost every conceivable SKU Microsoft released, plus regional variants.