24H2/23H2에서 Windows 11 25H2로 안전하게 업그레이드하는 방법

2025년 10월 15일
24H2/23H2에서 Windows 11 25H2로 안전하게 업그레이드하는 방법

If you plan to Windows 11 25H2로 업그레이드, choosing the correct installation method matters. Windows 11 24H2 users can usually complete the update quickly, while Windows 11 23H2 and Windows 10 users may need a full feature upgrade. In addition, some eligible PCs may not see the update immediately in Windows Update.

이 가이드에서는 다음과 같은 방법을 설명합니다. Windows 11 25H2로 업그레이드 safely with Windows Update, the Windows 11 Installation Assistant, an ISO file, or the KB5054156 enablement package. You will also learn how to fix a Windows 11 25H2 not showing problem and protect your files before upgrading.

Although Windows upgrades normally keep personal files, problems such as interrupted installations, accidental clean installs, or partition changes can still cause data loss. Therefore, back up important files first. If files disappear after the update and no backup is available, Magic Data Recovery provides another HDD 데이터 복구 옵션을 선택합니다.

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목차

Should You Upgrade to Windows 11 25H2 in 2026?

For most eligible PCs still running Windows 11 24H2, it makes sense to Windows 11 25H2로 업그레이드.

Microsoft released Windows 11 25H2 on September 30, 2025. Windows 11 24H2 Home and Pro editions reach the end of updates on October 13, 2026, while Windows 11 25H2 Home and Pro remain supported until October 12, 2027. Therefore, moving from 24H2 to 25H2 extends the supported lifecycle of your PC.

You may also see Windows 11 26H1 on Microsoft’s release information page. However, Microsoft states that 26H1 targets new devices released in 2026 and does not serve as an in-place feature update for existing 24H2 or 25H2 PCs. Consequently, existing users should not assume they need to skip 25H2 and move directly to 26H1.

For Windows 11 24H2 users, the Windows 11 24H2 to 25H2 transition is especially straightforward because both versions share the same core system files. Microsoft uses an enablement package to activate the 25H2 features already present in an updated 24H2 installation.

Before You Upgrade to Windows 11 25H2

전에 Windows 11 25H2로 업그레이드, spend a few minutes checking your PC. These precautions reduce the risk of compatibility problems and data loss.

Check Windows 11 Compatibility

If your PC already runs Windows 11 24H2, it normally meets the basic Windows 11 requirements. However, Windows 10 users should confirm compatibility before starting the upgrade.

Microsoft requires supported hardware, including a compatible 64-bit processor, TPM 2.0, Secure Boot capability, sufficient storage, and other Windows 11 requirements.

Avoid forcing Windows 11 onto unsupported hardware simply because an ISO workaround exists. Microsoft warns that unsupported PCs may experience compatibility problems and may not qualify for updates.

Install Pending Updates

Next, open:

설정 > Windows 업데이트 > 업데이트 확인

Install available cumulative updates before starting the feature upgrade. This step matters especially when using the Windows 11 25H2 enablement package, because KB5054156 requires Windows 11 24H2 with the necessary cumulative update level.

Update Important Drivers

Also check your PC manufacturer’s support page for recent storage, chipset, graphics, Wi-Fi, and BIOS or firmware updates.

You do not need to update every driver manually. However, if the manufacturer specifically recommends a driver or firmware update for newer Windows versions, installing it first may prevent compatibility problems.

Back Up Important Files

전에 Windows 11 25H2로 업그레이드, copy important documents, photos, work files, and other irreplaceable data to another drive or backup service.

An in-place upgrade usually keeps your personal data. Nevertheless, a backup protects you from unexpected shutdowns, installation failures, accidental formatting, or choosing the wrong installation option.

How to Upgrade to Windows 11 25H2: 4 Safe Methods

There is no single best method for every PC. Instead, choose a method based on your current Windows version and whether Windows Update already offers 25H2.

Method 1: Upgrade to Windows 11 25H2 via Windows Update

Windows Update is the easiest and safest method for most users.

If you currently run Windows 11 24H2, start here.

  1. 프레스 Windows + I to open Settings.
  2. 선택 Windows 업데이트.
  3. 클릭 업데이트 확인.
  4. 다음을 찾아보세요. Windows 11, version 25H2.
  5. 클릭 다운로드 및 설치 if Windows offers the update.
  6. Allow Windows to complete the installation.
  7. Restart the PC when prompted.

Microsoft states that eligible unmanaged Windows 11 24H2 Home and Pro devices can receive 25H2 through Windows Update.

For most 24H2 PCs, this is the preferred way to Windows 11 25H2로 업그레이드 because Windows Update checks device compatibility before offering the feature update.

Windows 10에서 최신 버전의 운영 체제로 컴퓨터를 업그레이드하려면 다음과 같이 하세요.

Method 2: Upgrade with Windows 11 Installation Assistant

If Windows Update does not offer 25H2 even though your PC meets the requirements, the official Windows 11 Installation Assistant provides another solution.

This method can also help users moving from an older supported Windows release.

  1. Visit Microsoft’s official Download Windows 11 페이지.
  2. 찾기 Windows 11 Installation Assistant.
  3. 선택 지금 다운로드.
  4. Run the downloaded tool as an administrator.
  5. Allow the assistant to check your hardware.
  6. Accept the license terms and select Accept and Install.
  7. Wait while Windows downloads and prepares the update.
  8. 선택 Restart Now 를 입력합니다.

Microsoft currently describes Installation Assistant as the best option for installing Windows 11 on the PC you are using. It requires an x64 processor and does not support Arm-based PCs.

따라서, 만약 ~해야 한다면 Windows 11 25H2로 업그레이드 but Windows Update does not offer it, Installation Assistant is usually the next method to try.

Method 3: Upgrade to Windows 11 25H2 Using an ISO

An official Windows 11 ISO gives you more control and works well when Windows Update fails or when you want to perform an in-place upgrade manually.

To Windows 11 25H2로 업그레이드 without intentionally removing your personal files:

  1. Download the current Windows 11 ISO from Microsoft’s official download page.
  2. Locate the ISO file in File Explorer.
  3. 마우스 오른쪽 버튼으로 클릭하고 Mount.
  4. Open the mounted virtual drive.
  5. 실행 setup.exe.
  6. Follow the Windows Setup instructions.
  7. When prompted, choose the option to keep personal files and apps.
  8. Continue the installation and allow the PC to restart.

Microsoft confirms that mounting an ISO and running Setup can upgrade the current operating system to Windows 11.

Be careful here. Booting directly from installation media can lead you toward a clean installation instead. If your goal is an in-place upgrade, start setup.exe from inside your current Windows installation and verify the option that preserves your apps and personal files.

Method 4: Upgrade Windows 11 24H2 to 25H2 with KB5054156

For users already running Windows 11 24H2, KB5054156 provides a particularly efficient upgrade path.

Windows 11 24H2 and 25H2 use the same core operating system and system files. Therefore, Microsoft can activate 25H2 through a small Windows 11 25H2 enablement package rather than reinstalling the entire operating system.

In most cases, Windows Update handles the package automatically. After installation, one restart activates version 25H2.

However, remember this important limitation:

KB5054156 is for Windows 11 24H2 devices.

Do not treat the enablement package as a universal upgrade file for Windows 10, Windows 11 23H2, or much older releases. Those systems may require a full feature upgrade instead.

컴퓨터를 Windows 11에서 최신 버전의 운영 체제로 업그레이드합니다.

Windows 11 25H2 Not Showing? Try These Fixes

Sometimes you may want to Windows 11 25H2로 업그레이드, but Windows Update does not display it.

First, do not immediately download unofficial installation files. Instead, work through these checks.

Install All Pending Windows Updates

Open Windows Update and install any pending quality, servicing, or cumulative updates. Then restart the PC and check again.

For 24H2 devices, keeping the system current also helps satisfy the prerequisites for the 25H2 enablement package.

Check Hardware Compatibility

Windows Update may withhold a feature upgrade from hardware that does not meet Windows 11 requirements.

Windows 10 users should pay particular attention to TPM 2.0, Secure Boot, processor support, and storage requirements.

Restart and Check Again

A pending restart can interfere with update detection. Therefore, restart Windows before checking for 25H2 again.

Then go to:

설정 > Windows 업데이트 > 업데이트 확인

Check for a Safeguard Hold

Microsoft sometimes applies a safeguard hold when it identifies a compatibility problem with specific hardware, drivers, or software. The hold temporarily prevents Windows Update from offering the new Windows version to affected devices.

Microsoft recommends allowing the hold to remain until it resolves the underlying issue.

Therefore, do not automatically force upgrade Windows 11 25H2 when Windows reports that the update is not ready for your device.

Use Installation Assistant or an ISO

If the PC meets all requirements and no known compatibility issue applies, you can consider Microsoft’s Installation Assistant or official ISO.

However, check the Windows Release Health page first. This simple step can prevent you from installing an update on a device affected by a known problem.

업그레이드 중 데이터 손실의 일반적인 시나리오

아무리 준비해도 일이 잘못될 수 있습니다:

정전으로 인한 업그레이드 중단

기존 업그레이드 대신 새로 설치

ISO 설치 중 포맷된 파티션

업데이트 후 누락된 사용자 파일

백업을 건너뛴 경우 파일이 손실된 것처럼 보일 수 있지만 복구는 가능합니다.

What If Files Are Missing After the Windows 11 25H2 Upgrade?

업그레이드 후 파일이 사라지는 경우, Magic Data Recovery Windows 업그레이드 후 가 해결책입니다.

왜 Magic Data Recovery를 선택해야 하나요?

Windows 업그레이드 중 손실된 파일 복구

NTFS, FAT, exFAT 파일 시스템 지원

사진, 문서, 동영상 및 아카이브 복원

딥 스캔 옵션으로 간편한 사용

손실된 파일을 복구하는 단계:

1. 다운로드 및 설치: Get Magic Data Recovery 를 다운로드하여 컴퓨터에 설치하세요.

Magic Data Recovery 다운로드

Windows 7/8/10/11 및 Windows Server 지원

2. 드라이브 선택: 소프트웨어를 실행하고 파일이 손실된 드라이브를 선택합니다.
Magic Data Recovery를 실행하여 손실된 덮어쓰기 파일을 검색하세요.
3. 스캔 시작: 시작하려면 “손실된 데이터 검색”을 클릭합니다. 빠른 스캔을 먼저 시작한 다음 정밀 스캔을 시작하여 손실된 파일을 더 많이 찾습니다.
손실된 데이터 검색
4. 미리보기 및 선택: 스캔 후 검색된 파일을 찾아보고 미리 봅니다.
Windows 11 25H2로 업그레이드 실패 시 손실된 파일 미리보기
5. 복구: 필요한 파일을 선택해 다음 폴더에 저장합니다. 다른 드라이브 (분실된 파일을 저장한 곳이 아님).
복구된 덮어쓰기 파일 저장
동영상을 통해 Magic Data Recovery의 사용 단계에 대해 알아볼 수도 있습니다.

결론

For most eligible users, the best way to Windows 11 25H2로 업그레이드 is to start with Windows Update. Windows 11 24H2 users benefit from the lightweight KB5054156 enablement package, while Installation Assistant and an official ISO provide useful alternatives when the normal update path does not work.

Before upgrading, install pending updates, check compatibility, and back up important data. Moreover, avoid forcing the update when Microsoft has placed a safeguard hold on your device.

If an upgrade failure, accidental clean installation, or partition mistake causes files to disappear, Magic Data Recovery provides a practical recovery option because it scans for lost files rather than trying to repair Windows itself. Still, 하드 드라이브 데이터 복구 works best before new data overwrites the missing files.

Magic Data Recovery 다운로드

Windows 7/8/10/11 및 Windows Server 지원

자주 묻는 질문

Windows 11 23H2에서 25H2로 바로 업그레이드할 수 있나요?

Yes, an eligible PC can move from an older Windows 11 release to 25H2 through an available Microsoft upgrade path. However, the lightweight KB5054156 enablement package applies specifically to Windows 11 24H2. Therefore, a 23H2 PC may need a full feature upgrade through Windows Update, Installation Assistant, or official installation media.

Should I upgrade Windows 11 24H2 to 25H2?

For most Home and Pro users, yes. Microsoft lists October 13, 2026 as the end-of-updates date for Windows 11 24H2, while 25H2 remains supported until October 12, 2027. In addition, the shared core between these versions makes the Windows 11 24H2 to 25H2 upgrade relatively lightweight through the enablement package.

Why is Windows 11 25H2 not showing in Windows Update?

A Windows 11 25H2 not showing issue can result from pending updates, hardware compatibility, managed update policies, or a Microsoft safeguard hold. First install pending updates and restart the PC. Next, check Microsoft's Windows Release Health information. If your PC remains eligible and has no known block, consider Installation Assistant or an official ISO.

What is the Windows 11 25H2 enablement package KB5054156?

KB5054156 is the official Windows 11 25H2 enablement package for devices running Windows 11 24H2. Because 24H2 and 25H2 share the same core operating system files, the package acts like a switch that activates 25H2 features already present on an updated 24H2 installation. It requires a restart after installation.

Can I upgrade Windows 10 directly to Windows 11 25H2?

An eligible Windows 10 PC can use Microsoft's Windows 11 upgrade tools if it meets Windows 11 hardware requirements. Installation Assistant requires Windows 10 version 2004 or later, among other conditions. Before you upgrade to Windows 11 25H2, use Microsoft's compatibility guidance and back up important files instead of bypassing unsupported hardware requirements.

Is it safe to force upgrade Windows 11 25H2 with an ISO?

An official ISO can provide a safe in-place upgrade path for a compatible PC. However, you should not use it simply to bypass a safeguard hold. Microsoft creates safeguard holds when known compatibility problems could affect specific devices. Therefore, check Release Health first and use only official Microsoft installation media when you need to upgrade to Windows 11 25H2 manually.

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