The User Profile Service failed the sign-in / user profile cannot be loaded error on Windows 11 usually happens when your account’s profile registry entries and/or profile folder permissions are broken. The result is painful: you can sign in, but Windows can’t mount your desktop, documents, and settings.
This guide walks you through the most reliable fixes—from quick checks to a controlled registry repair using the ProfileList entries (S-1-5-21). If the main approach fails, you’ll also get a safe workaround: creating a new profile while salvaging your data.
As an Amazon Associate I earn from qualifying purchases.
Work through the sections in order. Skip ahead if you already know the error pattern and have access to an admin account or Windows Recovery.
What the User Profile Cannot Be Loaded Error Means in Windows 11
When Windows sign-in runs for a local or Microsoft account, it uses the User Profile Service to locate your profile folder (usually C:Users<username>) and match it to the corresponding registry key under HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionProfileList.
#1 Best Overall
- USB-C 2-in-1 storage OTG: The Lexar JumpDrive Dual Drive D40E features USB Type-A and Type-C connectors in a slim, portable form factor for easy device compatibility
- Transfer speeds up to 100MB/s: Based on internal testing, performance may vary depending upon the host device, interface, and usage conditions. 1MB=1,000,000 bytes
- Plug and Play: Widely compatible with USB Type-C smartphones, tablets, laptops, Macs, and traditional Type-A devices, no software installation required. The 360° swivel design allows for easy switching between connectors without the hassle of losing a cap
- Durable & Compact: The Lexar D40E USB memory stick features a metal enclosure, withstands temperatures from 0° to 50° C (32°F to 122°F), and is lightweight at 26g with dimensions of 70.4 x 16.9 x 11.7mm
- Security & Warranty: Securely protects files using an advanced security software solution with 256-bit AES encryption. Backed by a Lexar 3-year limited warranty
If the registry entry is corrupted, mismatched (wrong path), missing permissions, or points to a profile state that Windows marks as unusable, the sign-in process stops with messages like “User profile cannot be loaded” or “We can’t sign into your account.”
Before You Start: Prerequisites and Safety Checks
Before touching anything, confirm you can complete repairs. Profile issues often require either Safe Mode or Windows Recovery.
What you’ll need
- Another admin account on the same PC (ideal). If you don’t have one, you may need Safe Mode or Recovery tools.
- Basic time: expect 30–90 minutes depending on whether you repair the registry.
- BitLocker awareness: if your PC uses BitLocker and you’re prompted for a recovery key, find it before proceeding.
Back up the registry (strongly recommended)
If you’re going to edit the registry, you’ll want a backup of the key you change. Even a simple copy is better than guessing.
Free tools Windows power users keep installed
One-click scans. No signup required.
Quick Fixes That Resolve Most Cases
Start with low-risk actions. Sometimes the profile service can’t load due to a lock, a stale session, or a mismatch created by a previous crash.
1) Reboot and ensure the profile folder isn’t in use
Completely restart (not shutdown) the PC. Then try signing in again. If Windows created a temporary profile during the last attempt, it may clear after a clean boot.
2) Try signing in with a different method
If you use a Microsoft account, test switching to a local account temporarily (if you have one). If you’re using a PIN, consider removing/re-adding it later after the profile is fixed.
3) Boot Safe Mode to reduce interference
If the error blocks you repeatedly, jump to Safe Mode repair. Safe Mode is often the fastest way to stop services that interfere with profile loading.
Repair the Profile in Safe Mode
Safe Mode boots with minimal drivers and services. That makes it easier to adjust profile permissions, remove corrupted remnants, and run system repairs.
Enter Safe Mode in Windows 11
- Press Win + I > System > Recovery.
- Under Advanced startup, click Restart now.
- Choose Troubleshoot > Advanced options > Startup Settings.
- Click Restart.
- On the Startup Settings screen, press 4 for Safe Mode or 5 for Safe Mode with Networking.
In Safe Mode: check whether you can access the profile folder
- Sign in using an admin account (preferably another Windows account on the PC).
- Open File Explorer and go to
C:Users. - Look for your affected username folder (for example,
C:UsersJohn).
If the folder exists but you can’t access it, you likely have a permissions problem (address it in the next section). If it doesn’t exist or is empty, the registry entry may point to the wrong path.
Rank #2
- High-speed USB 3.0 performance of up to 150MB/s(1) [(1) Write to drive up to 15x faster than standard USB 2.0 drives (4MB/s); varies by drive capacity. Up to 150MB/s read speed. USB 3.0 port required. Based on internal testing; performance may be lower depending on host device, usage conditions, and other factors; 1MB=1,000,000 bytes]
- Transfer a full-length movie in less than 30 seconds(2) [(2) Based on 1.2GB MPEG-4 video transfer with USB 3.0 host device. Results may vary based on host device, file attributes and other factors]
- Transfer to drive up to 15 times faster than standard USB 2.0 drives(1)
- Sleek, durable metal casing
- Easy-to-use password protection for your private files(3) [(3)Password protection uses 128-bit AES encryption and is supported by Windows 7, Windows 8, Windows 10, and Mac OS X v10.9 plus; Software download required for Mac, visit the SanDisk SecureAccess support page]
Use the Registry ProfileList Fix (S-1-5-21)
This is the most common “real fix” because the error often originates in a broken or mismatched registry state. Windows stores profile mappings under ProfileList entries that include the account’s SID (Security Identifier).
1) Open Registry Editor safely
- Press Win + R, type
regedit, press Enter. - Navigate to:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionProfileList
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
2) Locate the right ProfileList entry
Inside ProfileList, you’ll see subkeys named like long SIDs, for example S-1-5-21-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx-1001.
Find the SID that corresponds to the affected user:
- Method A (from another admin account): open Computer Management > Local Users and Groups > Users, right-click the affected user > check properties to see the SID details if shown in your UI/version.
- Method B (more reliable): use PowerShell to output the SID for the account, then match it to the ProfileList subkey.
To retrieve SID with PowerShell (run as admin):
- Press Win, type PowerShell.
- Right-click Windows PowerShell > Run as administrator.
- Run:
wmic useraccount where name="<username>" get name,sid
Replace <username>. Copy the SID and match it to the ProfileList folder name.
3) Look for a .bak profile state
Under the matching SID subkey, check for values:
- ProfileImagePath (should point to
C:Users<username>) - State (if present, it may be set to a “bad” value like
0or a state that blocks sign-in) - RefCount
If you see a second similar SID subkey ending with .bak or an alternate path, Windows may be confused about which profile is valid. You want one clean “working” entry that correctly points to the profile folder.
4) The common fix: edit State/RefCount and ProfileImagePath
In most troubleshooting cases:
- Set State to
0(DWORD) or delete it if Windows allows. - Set RefCount to
0(DWORD) or delete it. - Ensure ProfileImagePath exactly matches the real folder path.
Example: ProfileImagePath should look like:
C:UsersJohn
If the value points to something else (old username, renamed folder, or a drive letter that changed), Windows won’t mount the profile.
5) Remove the broken entry (only if you’re sure)
If there are multiple entries for the same user or one clearly points to a non-existent folder, the reliable approach is:
- Create a registry backup (export the ProfileList key or the specific SID key).
- Delete only the clearly broken SID entry that is causing sign-in to fail.
- Keep the SID entry that has a correct ProfileImagePath and correct references.
After the registry changes, restart and try signing in normally.
Rank #3
- What You Get - 2 pack 64GB genuine USB 2.0 flash drives, 12-month warranty and lifetime friendly customer service
- Great for All Ages and Purposes – the thumb drives are suitable for storing digital data for school, business or daily usage. Apply to data storage of music, photos, movies and other files
- Easy to Use - Plug and play USB memory stick, no need to install any software. Support Windows 7 / 8 / 10 / Vista / XP / Unix / 2000 / ME / NT Linux and Mac OS, compatible with USB 2.0 and 1.1 ports
- Convenient Design - 360°metal swivel cap with matt surface and ring designed zip drive can protect USB connector, avoid to leave your fingerprint and easily attach to your key chain to avoid from losing and for easy carrying
- Brand Yourself - Brand the flash drive with your company's name and provide company's overview, policies, etc. to the newly joined employees or your customers
Fix Folder Permissions for the Profile Directory
If registry values point correctly but Windows still can’t load the profile, permissions are often the culprit. A mismatched ACL can prevent profile creation of NTUSER.DAT, change permissions, or access AppData subfolders.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →1) Verify NTFS permissions on the profile folder
- In Safe Mode (recommended), sign in as an admin.
- Open File Explorer and go to
C:Users<username>. - Right-click the folder > Properties > Security.
Look for your account name (or its SID represented as “Account Name”). If permissions are missing, you’ll need to reset them.
2) Reset ownership and grants
Windows 11 doesn’t always recover ownership automatically after crashes or migrations. Use the built-in Security controls:
- On the Security tab, click Advanced.
- At the top, find Owner. Click Change.
- Enter your admin account name or use Find names to select it.
- Check Replace owner on subcontainers and objects (wording may vary slightly).
- Click Apply.
Then adjust permissions:
- Click Add > select the affected user account.
- Grant Full control.
- Apply changes and propagate if prompted.
Finally, restart and sign in as the affected user.
Repair System Files (SFC and DISM) From Windows Recovery
Sometimes the profile error is a symptom of deeper system corruption. If Windows can’t fully load components needed for user initialization, SFC and DISM help.
If you want an optional automated check alongside the built-in repairs, Outbyte PC Repair can scan for common Windows errors and repair-related system issues, but back up the registry and profile data first.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Run SFC
- Press Win, type Command Prompt.
- Right-click > Run as administrator.
- Run:
sfc /scannow
Wait for completion. If SFC reports it found corrupt files but couldn’t fix them, run DISM next.
Run DISM
- In the same elevated Command Prompt, run:
Dism /Online /Cleanup-Image /RestoreHealth
After DISM finishes, reboot and try signing in again.
If Windows won’t boot: run from WinRE
If you can’t reach a stable desktop, run commands from Windows Recovery Environment:
- Go to Advanced startup > Troubleshoot > Advanced options > Command Prompt.
- When prompted, choose your admin account and enter credentials.
- Run DISM using an offline image approach if required. If you have a Windows 11 ISO, you’ll mount it and use
/Source:wim:X:sourcesinstall.wim:1.
If you don’t have the ISO handy, try SFC first and then use the online method when possible after the system starts.
Recommended Free Tools
Check Disk Health and Free Space
Bad sectors and low free space can corrupt profile data, especially if Windows writes user registry hives (like NTUSER.DAT) during sign-in.
Rank #4
- GOOD VALUE PACKAGE - 1 Pack 32GB Memory Stick USB 2.0 Flash Drives with great cost performance and high quality.
- BIG CAPACITY - The available capacity: 29.10GB-29.8GB, You can save the data of movies, music, photos, designs, programs, manuals, handouts in a high speed.Good performance in digital data storing, transferring and sharing with families, friends, workmates, clients and machines.
- EASY TO USE & PLUG AND WORK - Support windows 7 / 8 / 10 / Vista / XP / 2000 / ME / NT Linux and Mac OS, Compatible with USB2.0 and below.
- TWISTTURN DESIGN & EASY CARRY - The metal clip rotates 360° round the ABS plastic body which with rubber oil skin feeling finish. The capless design can avoid lossing of cap, and providing efficient protection to the USB port.
- WARRANTY & SUPPORT - SIMMAX logo is laser printed on the USB connector surface, our products are of good quality and we promise that any problem about the product within one year since you buy.
Check available space
Go to Settings > System > Storage. Keep at least a few tens of GB free on the system drive for profile initialization and updates.
Run a disk check
- Open Command Prompt as administrator.
- Run:
chkdsk C: /f /r
Windows may schedule the check for next reboot. That’s normal. Reboot and let it complete.
Create a New Windows User Profile (Workaround That Preserves Your Data)
If your profile registry is tangled or the profile folder is heavily damaged, creating a new user profile can be the fastest path to get your PC usable again. You can still copy your data from the old profile folder.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallCrashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minute1) Create a new local admin account
- Sign in as an admin account that works.
- Press Win + I > Accounts > Family & other users.
- Under Other users, click Add account.
- Select I don’t have this person’s sign-in information > Add a user without a Microsoft account.
- Enter a username (example: John_New) and password.
- Set the account type to Administrator.
2) Copy data from the old profile folder
- Open File Explorer.
- Navigate to
C:Users<OldUsername>. - Copy folders like:
- Desktop
- Documents
- Downloads
- Pictures
- Music
- Videos
Then paste into C:Users<NewUsername> equivalents.
3) Recover browser data and app settings carefully
Browser sign-in data and extensions are often stored in AppData. If you try to copy AppData, do it item-by-item and expect broken settings. A safer approach is to sign into each app again in the new profile and then restore only what you truly need.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Edge Cases and Variations of the Error
Different triggers create similar symptoms. Here are the patterns that change the fix.
Microsoft account vs local account
Microsoft accounts sync settings with OneDrive/Cloud. Even if the sign-in fails to load the profile, Microsoft account sign-in might still work after the local profile fix. If you see repeated sign-in loops, registry repair and permissions remain the core fixes.
Domain-joined PCs (work/school accounts)
Domain environments can reset profile-related ACLs using Group Policy. If you repair permissions manually but Group Policy reverts them, you may need IT/admin intervention. In that scenario, focus on registry ProfileList consistency and ask the domain admin to verify profile folder permissions.
Profile folder exists but is missing key files
If NTUSER.DAT or AppData subfolders are missing or corrupted, Windows can’t initialize the profile hive. The registry fix may still help, but the “create new profile + copy data” workaround is often faster.
“Temporary profile” gets created
If Windows logs you into a temporary profile, it won’t persist your changes. That usually means the ProfileList entry is broken or the profile folder permissions are blocked. Repair the ProfileList and permissions before expecting your settings to stick.
Best Value
- 【16GB Flash Drive】USB flash drives with 16GB capacity, meet your needs of daily use on work, school, home and travelling for photos, music, videos, files storage and transfer. IMEASON thumb drives can be used to store different files, easy to data backup.
- 【Metal Swivel Cap Design】USB thumb drive is metal swivel cover provides extra protection for the usb thumbdrive connector, no usb drive cap to lose; keychain design makes it easier to carry without worrying lose it.
- 【Wide Compatibility】USB drive supports Windows 7/8/10/11 / Vista / XP / Unix / 2000 / ME / NT Linux and Mac OS, also Supports USB 2.0 and 1.1 ports. USB Stick support TV, desktop, notebook computer, car, audio and other device. The USB Memory Stick is your great data storage and transfer companion with traveling and working.
- 【Easy to use】usb memory stick is plug and play without any software installation. Just simply plug the Flashdrive into the port of your USB-compatible devices such as computer, laptop to start data storage or transmission.
- 【What You Get】16 GB USB Flash Drive Thumb Drive, The default format of the usb storage flash drive is FAT32.
Common Mistakes and What to Avoid
- Deleting the wrong ProfileList SID: you may break another user’s profile. Always identify the SID correctly.
- Editing ProfileImagePath without verifying the real folder: the path must match exactly, including folder name and drive letter.
- Changing ownership to the wrong account: you should usually assign ownership/permissions to the affected user (or a controlled admin action) so Windows can write profile hives.
- Trying too many fixes in one sitting: make one change set, reboot, then test sign-in. That makes troubleshooting possible.
- Ignoring BitLocker prompts: if recovery keys are needed and you proceed blindly, you risk data access issues later.
Troubleshooting If the Fixes Don’t Work
If you follow the registry and permissions steps and the error persists, use this checklist to narrow the cause.
1) Confirm the profile folder name matches ProfileImagePath
Even a minor mismatch like John vs John (1) can cause failure. Rename the folder only if you also update ProfileImagePath.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problems2) Check whether Windows is still using a temporary profile
After sign-in attempt, verify which username appears in File Explorer path. If it points to a temporary folder, your registry entry or permissions still aren’t correct.
3) Re-run SFC and DISM
Profile loading relies on core components. If system corruption exists, registry edits alone won’t be enough.
4) Inspect the event logs
Use Event Viewer to pinpoint the service failing. Press Win + R, type eventvwr.msc, press Enter.
Check Windows Logs > Application and System around the sign-in time. Look for User Profile Service errors referencing the SID and profile state.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →5) Consider system restore or a Windows 11 repair install
If the PC changed recently (updates, drivers, hard resets) and registry repair doesn’t help, a repair install or restore can reset system components. Keep in mind: restore points won’t reliably fix corrupted profile registry hives, but they can fix broken system files.
6) If you’re on Windows 11 23H2 or 24H2 with recent updates
Some users report profile loading issues after cumulative updates. Check Settings > Windows Update > Update history and note the most recent date. If you can sign in with another account, consider uninstalling the last update before the issue began, then reboot and test.
Bottom Line
The Windows 11 “user profile cannot be loaded” error is usually a mismatch between the account’s SID entry in ProfileList and the actual profile folder plus permissions. Start with Safe Mode, confirm ProfileImagePath, correct State/RefCount, and ensure the profile folder ACLs allow the user to read/write.
If the profile is too damaged to repair quickly, creating a new profile and copying user data from C:Users<OldUsername> is often the most reliable path to get your system working again without endless sign-in loops.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
