Whether you can open it depends on what is encrypted. For a BitLocker drive, look for the matching recovery key. For a password-protected Word document or a PDF that will not open, the software maker does not offer a way to recover a forgotten password; check saved credentials, backups, or the file’s creator instead. First identify the exact prompt—drive recovery, document opening, PDF permissions, or certificate access—because these require different credentials.
Identify what is asking for a password
“Encrypted file” can mean a whole Windows drive, a Word document, or a PDF. A BitLocker recovery screen asks for a recovery key, not necessarily the password you normally use to sign in or unlock the drive. A PDF may ask for a password to open, or it may already open while restricting actions such as editing or printing. Certificate-encrypted PDFs rely on a recipient’s certificate and private key. Microsoft’s BitLocker recovery documentation explains that recovery credentials are distinct from a drive’s usual unlock method.
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- Windows recovery screen: follow the BitLocker steps below.
- Word asks before displaying the document: look for the password or an unprotected copy; Word cannot recover a lost document password.
- PDF will not open: contact its author for the opening password.
- PDF opens but blocks editing or printing: this is a permissions restriction, not an unknown opening password.
- PDF mentions a certificate or digital ID: access depends on the intended recipient’s certificate and private key.
Find a BitLocker recovery key
At the recovery prompt, note the key ID. If more than one recovery key is available, match its ID to the one displayed before entering it. Microsoft lists several possible places where a previously saved key may be found.
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- For a work or school device, check the organization account or contact the organization’s IT team.
- Look for a printed copy or a USB flash drive where the recovery key may have been saved.
- If the device is organization-managed, ask IT whether recovery information is backed up in Microsoft Entra ID or Active Directory, or whether a configured Data Recovery Agent applies. These options depend on how the organization set up the device; they are not general consumer recovery methods.
See Microsoft’s instructions for finding a BitLocker recovery key. A USB drive is only a possible place to find a key saved earlier; it cannot create a missing key.
#1 Best Overall
- Certified to FIPS 197 - High-level information security standard approved by the U.S. Government
- Brute-Force Password Attack Protection - Data is automatically erased after 6 failed access attempts. The data and encryption key are securely destroyed and the crypto drive is reset
- Rugged Double-Layer Waterproof* Design - Protects the crypto drive against knocks, drops, break-in and submerging in water. The electronics are shielded by a hardended inner case. The rubberised silicone outer casing provides a final layer of protection
- Auto-lock - The crypto drive will automatically encrypt all data and lock when removed from a PC/Mac or when the screen saver or "computer lock" function is activated on the host PC/Mac
- Secure Entry - Data cannot be accessed without the correct high-strength alphanumeric 8-16 character password. A password hint option is available. The password hint cannot match the password
If the key is missing
Microsoft Support says it cannot retrieve, provide, or recreate a lost BitLocker recovery key. If you cannot find the key and cannot undo whatever triggered the recovery prompt, Microsoft points to Windows recovery options. Resetting the device can mean losing access to the encrypted data, so do not treat a reset as a way to preserve or decrypt the drive. For a managed computer, contact IT before taking recovery action. Microsoft’s recovery-key guidance explains where to look and what to do if the key is unavailable.
The BitLocker Repair tool is for damaged encrypted volumes and requires recovery material; it does not guess an unknown password. Microsoft describes the distinction in its BitLocker recovery process documentation.
Rank #2
- Certified to FIPS 197 - High-level information security standard approved by the U.S. Government
- Brute-Force Password Attack Protection - Data is automatically erased after 6 failed access attempts. The data and encryption key are securely destroyed and the crypto drive is reset
- Auto-lock - The crypto drive will automatically encrypt all data and lock when removed from a PC/Mac or when the screen saver or "computer lock" function is activated on the host PC/Mac
- Secure Entry - Data cannot be accessed without the correct high-strength alphanumeric 8-16 character password. A password hint option is available. The password hint cannot match the password
- SuperSpeed USB 3.0 - Transfer all your confidential files and folders faster than ever before. Works on both PC & Mac
Recover access to a Word document
Microsoft states that Word cannot recover a password-protected document when its password has been lost or forgotten. That rules out a built-in Word password-recovery procedure. Microsoft’s Word support page gives this limitation explicitly.
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Before giving up, check places where the password or another copy may already exist:
Rank #3
- Certified to FIPS 197 - U.S. Government Approved High Level Information Security Standard.
- Protection against brute force password attacks - Data is automatically erased after 6 unsuccessful access attempts. The data of the USB flash drive type c encryption with dual connectors is destroyed and the cryptographic drive is reset.
- Durable dual-layer waterproof design* — Protects the crypto reader from bumps, drops, run-in and immersion in water. The electronics are protected by a hardened internal case. Rubberized silicone outer case provides a final layer of protection.
- Auto-Lock —The cryptographic key automatically encrypts all data and locks when removed from a PC/Mac or when screen protection or "computer lock" is enabled.
- Secure Entry —Data on these flash drives cannot be accessed without the correct alphanumeric password of 8 to 16 characters. A password indication option is available for this flash drive. The hint cannot match the password.
- a password manager or secure notes;
- older messages from the person who sent or created the document;
- a backup or an earlier unprotected version.
These are places to search, not password-recovery options guaranteed by Microsoft. If someone else created the document, ask them for the password or a new copy.
Tell an opening password from PDF permissions
If the PDF will not open
Adobe’s guidance for a PDF with an unknown opening password is to contact its author. Adobe does not describe a method for recovering that password. See Adobe’s guidance on regaining access to locked PDFs.
Rank #4
- FIPS 197 with XTS-AES 256-bit Encryption: Provides business-grade security with hardware-based encryption to protect your sensitive data
- Brute Force and BadUSB Attack Protection: Safeguards against unauthorized access attempts and malicious USB attacks with digitally-signed firmware
- Multi-Password Option with Complex/Passphrase modes: Offers flexible password configuration options to meet various security requirements and user preferences
- New Passphrase Mode: Enhanced security feature allowing users to create longer, more memorable password phrases for easier access without compromising protection
- Dual Read-Only (Write-Protect) Settings: Enables write protection functionality to prevent accidental data modification or deletion when needed
If the PDF opens but restricts actions
A permissions password controls actions such as editing, printing, or copying. Adobe documents printing the PDF as an Adobe PDF as an option for regaining editing access when the user owns the PDF, can already open it, and has forgotten its permissions password. This does not unlock a PDF whose opening password is unknown. See Adobe’s instructions for changing or removing PDF encryption settings.
Certificate-encrypted PDFs need the recipient’s private key
A certificate-encrypted PDF is not unlocked with an ordinary document password: access depends on the intended recipient certificate and its private key. Adobe advises including your own certificate when encrypting a PDF. If a self-signed digital ID is deleted, PDFs encrypted to that ID are inaccessible; Adobe does not suggest that it or a generic utility can recreate the lost private key. See Adobe’s certificate-encryption guidance.
Best Value
- FIPS 140-3 Level 3 (Pending) Certified Military-Grade Security
- OS/Device Independent
- XTS-AES Hardware Encryption
- Enforced Alphanumeric PIN
- Multi-PIN (Admin and User) Option
What to avoid
Do not assume a damaged-volume repair tool can recover a missing password or key: those are different problems. The official guidance cited here does not establish that password-cracking utilities are safe, effective, or appropriate for these files. For each type of encryption, access depends on finding the right saved credential, contacting the file’s author or administrator, or locating a usable earlier copy.
Quick Recap
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