# How to set passphrase on Windows (Windows credential storage cleared unexpected)

**URL:** <https://forum.duplicati.com/t/how-to-set-passphrase-on-windows-windows-credential-storage-cleared-unexpected/22483>\
**Category:** Support\
**Created:** [June 10, 2026, 3:24am UTC](https://forum.duplicati.com/t/how-to-set-passphrase-on-windows-windows-credential-storage-cleared-unexpected/22483 "2026-06-10T03:24:09Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![kenkendk](https://forum.duplicati.com/user_avatar/forum.duplicati.com/kenkendk/32/5305_2.png) [@kenkendk](https://forum.duplicati.com/u/kenkendk)\
**Post date:** [June 10, 2026, 3:54pm UTC](https://forum.duplicati.com/t/how-to-set-passphrase-on-windows-windows-credential-storage-cleared-unexpected/22483/3 "2026-06-10T15:54:31Z")

</div>

> [@0x391F](#):
>
> issue caused by CCleaner, I used it yesterday, and it cleared all credentials in windows credential storage.

Ouch! Duplicati also stores the database encryption password in there. If you wipe that, Duplicati cannot read the configuration database.

> [@0x391F](#):
>
> I wonder what format is right.

You can use either:

```plaintext
Duplicati.CommandLine --passphrase= ******
Duplicati.CommandLine --passphrase ******
Duplicati.CommandLine --passphrase=" ******"
Duplicati.CommandLine --passphrase " ******"

```

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