マイクロソフトアカウント回復キー：探し方
Being stopped by the blue BitLocker recovery screen can be alarming, especially when Windows suddenly asks for a マイクロソフトアカウント回復キー after a BIOS update, TPM change, hardware repair, or another security-related event. In most cases, the term refers to the 48-digit BitLockerリカバリーキー backed up to the Microsoft account connected to the PC.
If you are asking, “Where can I find my Microsoft account recovery key?”, start with Microsoft’s official recovery-key page and match the Recovery Key ID shown on the locked computer. This guide explains the safest places to check, what to do when the key is missing, and when Magic Recovery Key 役立つかもしれません locate an existing key record that is still accessible on the system.
簡単な答え： A マイクロソフトアカウント回復キー is usually the 48-digit BitLocker recovery key associated with an encrypted Windows drive. Sign in to the Microsoft account linked to the PC from another device, find the stored BitLocker keys, and match the first eight digits of the Recovery Key ID shown on the BitLocker screen.
Windows 7/8/10/11およびWindows Serverをサポート
目次
マイクロソフトアカウント回復キーとは何ですか？
A マイクロソフトアカウント回復キー usually means the BitLocker recovery key stored with a Microsoft account. BitLocker uses this 48-digit number as an emergency unlock method when Windows cannot confirm that a startup, hardware, firmware, or security change is safe.
It is different from a Microsoft account recovery code or verification code. The リカバリーキーID also cannot unlock the drive; it only identifies the correct 48桁キー. Microsoft confirms that BitLocker may request recovery after hardware, firmware, software, or security changes.
How to Find My Microsoft Account Recovery Key
The right method depends on where BitLocker saved the key when encryption was enabled. For a personal Windows 10 or Windows 11 PC, the Microsoft account is usually the first place to check.
Method 1: Find the Microsoft Account Recovery Key オンライン
- Note the first eight digits of the リカバリーキーID on the locked PC.
- Open Microsoft’s official BitLocker recovery-key page on another device.
- 以下のアカウントでログインしてください マイクロソフトアカウント associated with the PC.
- Review the stored BitLocker keys.
- Match the Key ID with the one shown on the locked computer.
- Enter the corresponding 48-digit key.
Microsoft recommends matching the Key ID when several recovery keys appear. This avoids entering a valid key that belongs to another device or drive.
Windows 11 24H2 tip: On Windows 11 version 24H2 and later, the BitLocker screen may show a hint indicating which Microsoft account contains the recovery key.
Method 2: Check Every Microsoft Account You Have Used
If the expected マイクロソフトアカウント回復キー does not appear, try other accounts used during setup. If another person configured the device or enabled BitLocker, Microsoft notes that the key may be stored in that person’s account. Always compare the Recovery Key ID instead of relying only on the PC name.
Method 3: Check a Work or School Account
A business or school computer may store its マイクロソフトアカウント回復キー with the organization through Microsoft Entra ID or Active Directory. Sign in with the relevant work or school account and check the device information for BitLocker keys. If self-service recovery is restricted, contact the IT administrator.
Method 4: Check a Printed Copy, USB Drive, or Saved File
すべてが マイクロソフトアカウント回復キー is stored online. When BitLocker is configured, users may also save the key to a USB drive, print it, or keep it as a text file.
チェックする：
- Printed BitLocker recovery documents
- USB drives used during setup
- Saved text files on another disk
- Secure document or password archives
- IT records for a managed computer
Microsoft recommends keeping recovery information separate from the protected device.
Microsoft Account Recovery Key Not Showing? Try These Fixes
A missing key page is a common reason users search for my Microsoft account recovery key. Usually, the cause is the wrong account, a different setup owner, an organizational device, or a key that was never backed up to that account.
Before resetting or formatting anything:
- Check every Microsoft account you have used.
- Match the Recovery Key ID, not just the device name.
- Ask who originally set up the PC.
- Check a work or school account.
- Search USB drives, printed copies, and saved files.
- Recover access to the Microsoft account first if you cannot sign in.
- Avoid resetting the PC while important encrypted files are still needed.
Microsoft states that it cannot retrieve, provide, or recreate a lost BitLocker recovery key. If no valid key can be found, resetting Windows may become the remaining way to reuse the PC, and that can remove files on the encrypted drive.
紛失したBitLockerキーを見つけるための実用的なソリューション
Microsoft’s official methods should come first. If those locations fail, Magic Recovery Key can search for an existing BitLocker recovery-key record under supported conditions. It may help when:
- You cannot find the マイクロソフトアカウント回復キー online.
- The correct Microsoft account is unknown or inaccessible.
- A BitLocker key may still exist locally but is difficult to locate manually.
- You want to back up an accessible key before a hardware or Windows change.
- The original system disk can be connected to another accessible Windows PC.
The limitation is important: Magic Recovery Key does ない crack BitLocker, bypass encryption, or generate a replacement key. It can only help if usable recovery information still exists and can be accessed. Amagicsoft’s documentation describes its BitLocker module as a tool for finding the Key ID and recovery key stored on supported systems.
Why Use It Instead of Blind Manual Searching?
After several accounts, USB drives, and documents have been checked, targeted scanning can reduce guesswork. Magic Recovery Key focuses on stored BitLocker recovery information, lets you compare results with the Recovery Key ID, and does not require formatting the encrypted drive. That makes it more appropriate than a generic file-recovery tool when the real problem is a missing key.
Magic Recovery Keyの使い方
Windows 7/8/10/11およびWindows Serverをサポート
3.リカバリーキーをスキャンする:ツールにシステムをスキャンさせる BitLockerリカバリキー.
4.キーを取り出す:スキャンが完了すると、ツールは次のように表示します。 BitLockerリカバリーキー.
How to Avoid Losing Your Microsoft Account Recovery Key Again
After unlocking the drive, create more than one secure backup. Save the key to the correct Microsoft account, keep another copy away from the PC, and label it with the device name and Recovery Key ID. For business systems, confirm that IT has a managed backup.
まとめ
The safest way to recover a マイクロソフトアカウント回復キー is to start with Microsoft’s official recovery page, match the Recovery Key ID, and then check every legitimate backup location. Personal accounts, work or school accounts, USB drives, printed copies, and saved files should all be reviewed before a reset or format.
もしそれらの方法がうまくいかない場合は、, Magic Recovery Key is worth considering because it focuses on locating an existing BitLocker recovery record rather than bypassing encryption. That makes it a practical final check when the key may still exist on an accessible Windows system.
If you need a more efficient solution after manual searches fail, consider trying Magic Recovery Key before taking irreversible steps.
Windows 7/8/10/11およびWindows Serverをサポート
よくあるご質問
Microsoftアカウントのリカバリキーはどうすれば見つかりますか？
MicrosoftアカウントなしでBitLockerキーを復元する方法は？
BitLocker 復旧キーがない場合はどうなりますか？
BitLocker 復旧キーを省略できますか？
マイクロソフトのアカウントでGmailは使えますか？
暗号鍵を紛失した場合はどうなりますか？
BitLockerを強制的に削除する方法は？
cmdを使ってリカバリーキーを見つけるには？
BitLockerキーなしでPCを復元する方法は？
