diff --git a/Troubleshooting.md b/Troubleshooting.md
index 294b9f0..cc1b2d6 100644
--- a/Troubleshooting.md
+++ b/Troubleshooting.md
@@ -8,6 +8,29 @@ If there's a UI problem, it usually means that the Trilium frontend got into inc
 
 If this still doesn't help or you suspect it's actually backend issue, you can restart the whole application - in case of desktop (Electron) build, you just close the window and re-open it again.
 
+## Forgotten username/password
+
+In case you forgot your password, this means that:
+
+* your protected notes are forever lost - they cannot be decrypted without the password
+* normal (unprotected) notes are recoverable. Read below to see how.
+
+To be able to change username/password and thus recover your unprotected notes, you need to get access to the [[document]] file in a [[data directory]]. You then need to open the `document.db` file with SQLite client (command line or e.g. [DB Browser](https://sqlitebrowser.org/)) and execute following queries:
+
+```sql
+UPDATE options SET value = 'your_username' WHERE name = 'username'; -- feel free to change 'your_username' to your desired username
+UPDATE options SET value = '77/twC5O00cuQgNC63VK32qOKKYwj21ev3jZDXoytVU=' WHERE name = 'passwordVerificationSalt';
+UPDATE options SET value = '710BMasZCAgibzIc07X4P9Q4TeBd4ONnqJOho+pWcBM=' WHERE name = 'passwordDerivedKeySalt';
+UPDATE options SET value = 'Eb8af1/T57b89lCRuS97tPEl4CwxsAWAU7YNJ77oY+s=' WHERE name = 'passwordVerificationHash';
+UPDATE options SET value = 'QpC8XoiYYeqHPtHKRtbNxfTHsk+pEBqVBODYp0FkPBa22tlBBKBMigdLu5GNX8Uu' WHERE name = 'encryptedDataKey';
+```
+
+This will set the password to "password". You can use that to login to the application again.
+
+If you already had protected notes (which are not unrecoverable), I recommend deleting them or alternatively export the unprotected notes, delete the document.db and start anew.
+
+If you decide to continue using the existing document file, don't forget to change your password (Options -> Change password).
+
 ## Sync and consistency checks
 
 Trilium periodically checks logical consistency of the database (e.g. that every note should have a parent). If some inconsistency is detected, user is notified on the UI about the inconsistency.