Fix ERROR_NO_SUCH_USER (0x00000525) on Windows 10/11

What's happening with error 0x00000525?

You're seeing 0x00000525, which tells you Windows can't find a user account it expects to see. This usually happens after you rename an account, delete a user profile, or move a user folder. The system holds onto old references, and when it tries to load that account, it hits a dead end.

The most common scenario: you renamed "John" to "John.Doe" in Computer Management. Now every time you try to log in or run something under that account, you get this error. Or maybe you deleted a profile via System Properties but the account still shows up in the login screen. Both paths lead here.

Heads up: This isn't your typical "user not found" login error. It's a system-level error that appears in Event Viewer, during app launches, or when you try to access shared folders. The fix depends on what's broken: the profile, the SID mapping, or the account itself.

Fix 1: Quick check (30 seconds)

Before we do anything deep, let's confirm the account still exists. Open Command Prompt as admin. Click Start, type cmd, right-click it, and pick "Run as administrator".

net user

Look at the list. Do you see the account you're having trouble with? If it's missing, that's your problem. Someone deleted it. If it's there, move to the next fix.

If the account is missing but you need it back, you can recreate it with:

net user username password /add

Replace username and password with what you need. This creates a fresh account, but it won't have the old profile or files. Those might still be in C:\Users, just under a different name.

Fix 2: Quick, safe check (5 minutes)

Check the user's profile path in the registry

Windows stores each user's profile path in the registry. If that path is wrong—maybe you moved the user folder or renamed it—you'll get 0x00000525.

1. Press Win + R, type regedit, and hit Enter.
2. Go to:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
3. You'll see a list of SIDs (long strings like S-1-5-21-...). Click each one and look at the ProfileImagePath value on the right.
4. Find the one that points to the user folder for the problematic account. For example, if your user was John, you'd see something like C:\Users\John.
5. If that path doesn't match where the folder actually is, double-click ProfileImagePath and correct it. If you renamed the folder from John to John.Doe, change the path to match.

After editing, reboot. The error should be gone if the path was the only issue. If you still see it, the profile itself might be corrupt.

Fix 3: The moderate fix (5-10 minutes)

Check for orphaned SIDs or duplicate profiles

Sometimes you have two SIDs pointing to the same user, or a SID with no matching account. Both cause 0x00000525.

Back in the same registry key (ProfileList), look for any SID that has a .bak at the end. Example: S-1-5-21-1234-5678.bak. This is a backup Windows makes when a profile gets corrupt.

1. If you see a .bak version, check the ProfileImagePath of both the original and the .bak. They might point to the same folder.
2. Rename the .bak by removing .bak from the name, or delete it if you're sure the original is fine. Warning: Only delete the .bak if the original SID has a valid ProfileImagePath and you don't need the backup.
3. If you see a SID with no ProfileImagePath at all, that's an orphan. Delete that whole key (right-click, delete). Don't delete SIDs that belong to system accounts (like S-1-5-18 for Local System).

Reboot after cleaning up. This fix resolves most cases where a user was deleted but the profile folder lingers, or when you had a profile corruption that left a backup behind.

Fix 4: The advanced fix (15+ minutes)

Use the Local Users and Groups snap-in to recreate the user mapping

If the account exists but the SID-to-user mapping is broken, or if you're dealing with a domain account that lost its local profile, this is your best shot.

1. Press Win + R, type lusrmgr.msc, and press Enter. (This is available in Windows Pro and Enterprise. If you're on Home, you'll need to use netplwiz instead—see below.)
2. Click Users. Find the problematic account. Right-click it and pick Properties.
3. Check the profile path under Profile tab. If it's wrong, correct it. For local accounts, this field is often blank—that's normal.
4. If the account looks fine here but the error persists, go back to the registry (Fix 2) and check the ProfileList key for the corresponding SID. Sometimes the user account is fine in lusrmgr, but the registry profile listing is corrupt.

For Windows Home users: Open netplwiz (Win+R, type netplwiz). Select the user and click Properties. You can change the user name here. If you renamed the account, type the old name and apply, then type the new name again. This forces Windows to update the internal references. Reboot after.

If nothing else works: Create a new user profile

This is the nuclear option. You'll lose custom settings, but you keep your files.

1. Create a new local admin account: Open Command Prompt (admin) and type:
   net user tempuser /add
net localgroup Administrators tempuser /add
2. Log into that new account.
3. Copy files from C:\Users\[OldUser] to the new user folder. Don't copy the entire profile—just Documents, Desktop, Downloads, etc. Avoid copying NTUSER.DAT or AppData to prevent bringing the corruption over.
4. If you need the old account gone, delete it via Computer Management > Local Users and Groups > Users (right-click, delete). Or in Command Prompt: net user oldusername /delete.

This approach is reliable because it bypasses whatever broke the old profile. You're starting fresh with a clean SID mapping. It takes about 20 minutes, but it's the closest thing to a guarantee.

Final thoughts

Error 0x00000525 is almost always a registry profile path issue or an orphaned SID. I've fixed it hundreds of times by just removing .bak keys. Don't jump straight to reinstalling Windows—that's overkill. Start with Fix 1, and only go deeper if you have to.

One last thing: if you're on a domain and this error pops up when you try to access a network resource, it's not your local account. It's a domain account issue. In that case, check Active Directory Users and Computers instead. But for local Windows accounts, the fixes above will get you sorted.