How to install 25H2 enablement package?

Julie Schilling 25

I'm looking for guidance on how to install the 25H2 enablement package on my Windows system. I am unsure about the proper steps to download and activate this update, and I want to ensure I do it correctly without causing any issues with my current setup.

Any detailed instructions or tips on the process would be greatly appreciated, especially if there are specific prerequisites or precautions I should be aware of before proceeding.

Locked Question. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

antonio cardamone 0 Reputation points

2026-07-04T12:19:23.6233333+00:00

I have the same question on which update works with windows 11 pro
JuliaMarvin 22,180 Reputation points Volunteer Moderator

2026-07-04T12:26:32.49+00:00

@antonio cardamone
Please start your own thread.
This thread here is old and will be now locked.

Answer accepted by question author

EraurVane 265

25H2 (build 26200.5074) insider preview ISO is now released for manually update.

https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewiso

Download ISO, mount it (right click and select mount) and run setup.exe to start update.

robert zoungrana 0 Reputation points

2025-11-23T03:51:30.45+00:00

j ai putot une question

mon ordi est TPM 1.2 mais tourne déjà sous

w21H2

comment faire pour avoir W25H2

Answer recommended by moderator

Ramesh 180.7K Volunteer Moderator

The 25H2 enablement package is here: https://catalog.sf.dl.delivery.mp.microsoft.com/filestreamingservice/files/fa84cc49-18b2-4c26-b389-90c96e6ae0d2/public/windows11.0-kb5054156-x64_a0c1638cbcf4cf33dbe9a5bef69db374b4786974.msu

Prerequisites

Before updating to Windows 11, version 25H2 using an enablement package, you must be running Windows 11, version 24H2. You must have the following prerequisite installed before applying this update:

August 29, 2025—KB5064081 (OS Builds 26100.5074) Preview or a later cumulative update

Links

How to get the Windows 11 2025 Update | Windows Experience Blog

Windows 11 25H2 final Enablement Package and ISO direct download links for x64 and ARM64 - Pureinfotech

KB5054156: Feature update to Windows 11, version 25H2 by using an enablement package - Microsoft Support

Kató Róbert Imre (TnCO) 5 Reputation points

2025-10-06T12:38:56.2533333+00:00

Hi Ramesh,

I installed this enablement package, but nothing happened. After the restart, my windows version is still 10.0.26100.6508

What did I wrong?

1 additional answer

robert zoungrana 0 Reputation points

2025-11-23T03:48:49.07+00:00

j ai plutot une question

mon ordi est TPM 1.2 mais tourne déjà sous

w21H2

comment faire pour avoir W25H2
Was this answer helpful?

1 person found this answer helpful.
RJR 6 Reputation points

2026-01-27T22:27:31.2766667+00:00

Windows 11 officially requires TPM 2.0 for installation and support. While it is technically possible to install Windows 11 on systems with only TPM 1.2 by bypassing system checks (using utilities like RUFUS to Disable security requirements and create a bootable Win11 OS image) , this is not recommended, as Microsoft does not guarantee updates or support for such configurations. TPM 2.0 provides necessary, updated security, while TPM 1.2 uses outdated SHA-1 algorithms.

If you want to try, I recommend the following:

TPM Support: Some PCs support (both) TPM 1.2 and TPM 2.0! Enter UEFI / BIOS setup, then locate Security / TPM settings and check to see if you can change your TPM from 1.2 to 2.0.

Note: If Yes, then change from TPM 1.2 to TPM 2.0 immediately, save and exit.

Firmware Update: If only TPM 1.2 is available then Go To your PC manufacturer's website and locate the latest UEFI FW / BIOS update and upgrade your UEFI / BIOS to the latest version (Do Not attempt to run Windows 11 with down-level FW).

Note: After FW Update, Go back to Step 1 above and check if you can now Enable TPM 2.0. If YES, then Enable TPM 2.0 (and/or) proceed to Step 4 below.

Secure Boot: If TPM 2.0 is Enabled then Enable Secure Boot

Windows 10 Updates: If possible - Upgrade your current Windows 10 from 21H2 > 22H2 > 23H2 > 24H2 (Do Not ignore this if it is possible).

Acquire Windows 11 Pro: Locate and purchase / download either your PCs manufacturer's OEM Windows 11 OS image (or) Purchase a generic (non-specific) OEM Windows 11 Pro DVD media

Note: A Retail version should work too but Do Not try to use another OEM manufacturer's OS image media. (best to use Pro and Not Home edition if possible)

Backup (full backup): of your current Windows 10 OS and Data

Note: I would purchase another SSD then swap out your current Windows SSD / HDD so it remains intact (after backup is done.)

UEFI Mode: If you PC is currently configured for BIOS / Legacy Mode then Go To UEFI / BIOS setup and change the Boot Mode to UEFI

Note: Boot Mode: https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/boot-to-uefi-mode-or-legacy-bios-mode?view=windows-11

Deployment Method: If TPM 2.0 is Enabled (see steps 1 & 2 above), then you may use either of the following deployment options:

Note: (If Windows 10 Updates are successful then you may attempt Windows Upgrade) - If Windows 10 Updates were Not possible, then only attempt a clean / new OS installation (will wipe all existing data).

DVD media install: Configure PC to boot from internal DVD drive or external USB DVD drive. Insert DVD media and boot from DVD and perform Win11 Upgrade / Clean install as appropriate.

Rufus Bootable Flash Drive: If only TPM 1.2 is available then you will need to create a RUFUS Bootable Flash Drive with Windows 11 security (pre-requisites) Disabled.

Create Rufus Media: (best method) Go to https://rufus.ie/en/ and download the latest Portable version.

Place Win11 DVD media (if purchased) in the DVD drive (or) if Win11 is an .ISO image then copy to a local folder on the system you are creating the Rufus media on.

Insert USB flash drive into PC

Run Rufus as an Administrator

Confirm Rufus has selected the correct USB flash drive!

Within Rufus app, point Rufus to the location of the Win11 DVD / .ISO media

Disable Win11 Security pre-requisites ONLY IF YOUR PC DOES NOT SUPPORT TPM 2.0.!!!

If Only TPM 1.2 is possible then be sure to Disable 'Remove requirement for 4GB+RAM, Secure Boot and TPM as shown below.

Refer to documentation / examples here: https://rufus.ie/en/

Leave other Rufus settings at default and Click OK

Click Start

When Status (Ready) progress bar is 100% Green, then close the Rufus utility.

Done with Rufus.

Insert Rufus Bootable flash drive: media into PC to install Windows 11

Double-confirm Boot Device: of the PC is set to boot from USB flash driver as the primary boot device (and/or) Press F12 to boot from "one-time" boot device (and/or) Go To UEFI setup and select the USB flash driver as a one-time boot device.

Boot PC from Rufus flash drive: Press any key (ie space bar) when prompted to boot the Windows 11 installation media

Follow the on-screen prompts: to Upgrade (if possible) but Clean OS installation is recommended

Restore Personal Files: After OS installation is complete and booted into Windows 11, and then copy all personal data files back to documents, pictures, etc.

Activate Windows 11: using the COA ( AKA - 5x5) Activation Key that came with your Windows 11 Pro purchase.

Note: If your PC cannot use TPM 1.2 and Win11 Security Pre-requisites were Disabled within Rufus during media creation then you might not receive all Windows 11 Security Updates.

Done

Hope this helps and good luck. Best to try with a test PC first (just don't activate the test PC )