Click , map your directory path to the downloaded GSM Pack V27 ISO, and click open.
If the build is "Pre-Activated," Windows will be ready; otherwise, you may need to enter a valid license key in Settings > Update & Security > Activation Important Considerations Security Risks
: Note that official support for standard Windows 10 21H1 ended on December 13, 2022
Microsoft no longer releases security updates for 21H1. If you install it today (outside an enterprise locked environment), your PC will be vulnerable. Always use a (currently 22H2). windows 10 pro 21h1 gsm pack v27 install
: The official Windows 10 21H1 reached its end of servicing on December 13, 2022 . It no longer receives security updates from Microsoft.
Custom "GSM Packs" often disable core defensive features like Windows Defender, User Account Control (UAC), or the Windows Update service to save system resources.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Click , map your directory path to the
To ensure a smooth boot process free from hardware restrictions, modify your motherboard settings.
Locate the tab and shift the USB flash drive to the primary boot position.
: Because these builds are modified by third parties and often have security features disabled, they should be used on dedicated service machines rather than personal computers containing sensitive personal data. Official Support Always use a (currently 22H2)
Power on the PC and instantly tap the (usually F12 , F9 , F11 , or Esc depending on your motherboard).
Restart the computer and enter the (usually F12, F11, or Esc) to select the USB drive. Setup Steps : Select your language and keyboard preferences. Choose "Custom: Install Windows only (advanced)" .
To successfully install this custom environment, follow these steps: 1. Preparation and Prerequisites
If prompted with "Press any key to boot from CD or USB," hit any key on your keyboard. Step 4: The Windows Installation Process