خطای پروفایل در ویندوز 10

[پیمان]

That exact message:

**“The User Profile Service failed the sign‑in. User profile cannot be loaded.”**

means Windows **cannot read your user profile folder**, usually because:

- The profile is corrupted
- The profile registry settings are damaged
- Windows created a temporary profile
- The NTUSER.DAT file is locked or damaged

Here are the **proven fixes**, starting from easiest to advanced.

---

# ✅ QUICK FIXES (try these first)

## 1. Restart the computer (full restart)
Do **Shift + Restart** → Continue.

This forces Windows to reload profile services.
Many times, this error is temporary.

---

## 2. Boot into Safe Mode, then reboot normally
1. Hold **Shift** → click **Restart**
2. Troubleshoot
3. Advanced options
4. Startup Settings
5. Press **4** for Safe Mode

Log in → restart → log in normally.

If still broken, go to Fix 3.

---

# ? MAIN FIX (works in most cases)
## 3. Fix the corrupted profile using the Registry
If you're comfortable editing the registry, follow this.

### Step 1 — Open Registry Editor
1. Press **Win + R**, type `regedit`, enter.
2. Navigate to:

```
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
```

### Step 2 — Look for profile keys with `.bak`
You will see keys like:

- `S-1-5-21-…-1001`
- `S-1-5-21-…-1001.bak`

This means Windows tried to load your profile but failed.

### Step 3 — Repair them
If two keys exist:

1. Rename the one **without** `.bak` → add `.temp` at the end.
2. Rename the `.bak` one → remove `.bak`.
3. Click the corrected key and fix values:

- `RefCount` → set to **0** (double-click to change)
- `State` → set to **0**

### Step 4 — Close Registry Editor and restart
Log in again — your profile should load normally.

---

# ? FIX 4 — Check disk for corruption
A damaged profile often comes from disk errors.

1. Open Command Prompt (Admin)
2. Run:

```
chkdsk C: /f /r
```

Restart and let it scan.

---

# ? FIX 5 — Create a new user profile
If the original profile cannot be recovered:

1. Boot into Safe Mode
2. Go to:
Settings → Accounts → Family & other users
3. Create a new local/Microsoft account
4. Restart
5. Copy your files from:

```
C:\Users\OldUserName
```

This permanently bypasses the corrupted profile.

---

# ? FIX 6 — Restore your system (if this started recently)
1. Boot with **Shift + Restart**
2. Troubleshoot
3. System Restore
4. Choose a restore point from before the problem

---

# ? To help you faster
Tell me these:

1. Can you log into **any** account (admin or not)?
2. Does your user folder still appear here:
`C:\Users\YourUserName`
3. Did this start after an update, crash, or forced shutdown?

With those answers, I can give you the exact steps tailored to your case.