MetaMask Crypto Wallet Error Code Could Not Decrypt Vault: How to Fix It
Medium 15-45 minutes High Severity
Verified June 2026
- Error Code
- Could Not Decrypt Vault
- Brand
- MetaMask
- Product Type
- crypto_wallet
- Severity
- High
- DIY Difficulty
- Medium
- Estimated Fix Time
- 15-45 minutes
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Tools You'll Need
- Computer or mobile device
- Internet connection
- Written seed phrase
How to Fix Error Code Could Not Decrypt Vault
-
Verify Password Accuracy
Never share your MetaMask password with anyone or enter it on suspicious websites -
Clear Browser Cache and Data
This will log you out of other websites, so ensure you have login credentials saved -
Try Password Reset Options
-
Restore from Seed Phrase
Only enter your seed phrase on the official MetaMask extension or app - never on websites or suspicious applications -
Reinstall MetaMask Extension
Ensure you have your seed phrase written down before uninstalling, as this will permanently delete your local wallet data -
Contact Support for Advanced Issues
MetaMask support will never ask for your seed phrase or private keys
Parts You May Need
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
Seed phrase backup
Check Price on Amazon
Hardware wallet
Check Price on Amazon
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When to Call a Professional
Contact MetaMask official support if you've lost both your password and seed phrase, or if the vault corruption persists after trying all steps. For significant crypto holdings, consider consulting a cryptocurrency recovery specialist, though success is not guaranteed without proper backup information.Frequently Asked Questions
Can I recover my MetaMask wallet without the seed phrase?
Unfortunately, if you've lost both your password and seed phrase, wallet recovery is extremely difficult and often impossible. The seed phrase is the master key to your wallet - always keep multiple secure copies.
Why does MetaMask show 'Could Not Decrypt Vault' error?
This error typically occurs due to an incorrect password, corrupted browser data, browser updates affecting stored data, or file system issues. The vault contains your encrypted wallet data and requires the correct password to decrypt.
Will I lose my crypto if I reinstall MetaMask?
No, your cryptocurrency remains on the blockchain. Reinstalling MetaMask only removes the local interface. You can restore full access using your seed phrase, and all your tokens and transaction history will reappear.
How can I prevent this error in the future?
Keep multiple secure copies of your seed phrase, use a strong but memorable password, regularly backup your browser data, and consider using a hardware wallet for large holdings. Never store sensitive information in easily accessible digital locations.
Is my MetaMask wallet hacked if I see this error?
Not necessarily. This error usually indicates technical issues rather than security breaches. However, if you suspect unauthorized access, immediately restore your wallet with a new seed phrase and transfer funds to a fresh wallet address.