首先嘗試通過任務(wù)管理器啟動(dòng)explorer.exe；若無效，則依次運(yùn)行sfc /scannow和DISM修復(fù)系統(tǒng)文件；1. 重啟進(jìn)入安全模式；2. 在安全模式下卸載顯卡驅(qū)動(dòng)；3. 禁用所有啟動(dòng)項(xiàng)並進(jìn)行全盤殺毒；4. 檢查並修復(fù)Windows更新；5. 如用戶配置文件損壞，創(chuàng)建新管理員賬戶遷移數(shù)據(jù)；最後可考慮使用媒體創(chuàng)建工具進(jìn)行修復(fù)安裝，此問題通常為軟件或驅(qū)動(dòng)故障，多數(shù)情況可避免數(shù)據(jù)丟失。

If your Windows PC shows only a black screen with a cursor before login, it usually means the system has booted far enough to start the login process, but something is preventing the login interface or desktop from loading properly. This can be frustrating, but it's often fixable. Here are the most common causes and solutions:

1. Explorer or Shell Process Isn't Loading

Sometimes Windows starts, but the shell (explorer.exe) fails to launch, leaving you with just a cursor.

Try this:

• Press Ctrl Shift Esc to open Task Manager.
• Click File > Run new task .
• Type explorer.exe and press Enter.
• If the desktop appears, the issue is temporary or related to explorer not starting.

If this works, it may come back after reboot. To fix permanently, check for corrupt system files or misconfigured settings (see below).

2. Corrupted User Profile or Login Interface

The sign-in screen (Winlogon/UI) might be failing due to a corrupted profile or system file.

Fix with System File Checker:

1. Press Ctrl Shift Esc to open Task Manager.
2. Click File > Run new task .
3. Type cmd , check "Create this task with administrative privileges" , and press Enter.
4. In the Command Prompt, run:

    sfc /scannow

5. Wait for the scan to finish. If it finds and fixes issues, restart.

If sfc doesn't help, try:

 DISM /Online /Cleanup-Image /RestoreHealth

Then run sfc /scannow again.

3. Graphics Driver Issues

A faulty or updated graphics driver can cause a black screen after boot.

Try booting into Safe Mode:

• Restart your PC and interrupt boot 3 times to trigger Automatic Repair .
• Go to Troubleshoot > Advanced Options > Startup Settings > Restart .
• After restart, press F4 or 5 to boot into Safe Mode (with or without networking).

If the desktop loads in Safe Mode:

• Uninstall the graphics driver:
  1. Press Win X > Device Manager .
  2. Expand Display adapters , right-click the GPU, and choose Uninstall device .
  3. Check “Delete the driver software” if available.
• Restart normally — Windows will use a basic display driver.

4. Third-Party Software or Startup Conflict

Sometimes malware, antivirus, or startup apps interfere with the login process.

What to do:

• Boot into Safe Mode (as above).
• Open Task Manager > Startup tab and disable all startup items.
• Or use msconfig :
  1. Run msconfig from Task Manager.
  2. Go to Startup tab > Open Task Manager , and disable everything.
  3. Reboot and see if login screen appears.

Also, scan for malware using:

 mpcmdrun.exe -scan -scantype 2

(run in admin Command Prompt — this triggers a full Microsoft Defender scan).

5. Check for Pending Updates or Failed Updates

A failed Windows Update can cause this issue.

• Boot into Safe Mode.
• Go to Settings > Update & Security > Windows Update .
• Check if there are pending or failed updates.
• If so, try to install them or use the Windows Update Troubleshooter .

Alternatively, use the media creation tool to perform a repair install (in-place upgrade) — this reinstalls Windows without deleting your files.

6. Temporary Profile or Profile Corruption

If Windows can't load your user profile, it may fall back to a temporary one or fail silently.

Signs:

• You see a temporary profile message on rare occasions.
• Settings and files don't load.

Fix:

• Boot into Safe Mode and log in as a different admin account (create one if needed via Command Prompt):

   net user tempadmin P@ssw0rd /add
  net localgroup administrators tempadmin /add

• Then check your original profile under C:\Users\YourName — if it's corrupted, you may need to migrate data.

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Summary – Quick Steps to Try:

• ? Launch explorer.exe via Task Manager .
• ? Run sfc /scannow and DISM .
• ? Boot into Safe Mode to diagnose.
• ? Update or roll back graphics drivers .
• ? Disable startup apps and scan for malware .
• ? Repair install Windows (last resort) .

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It's usually not hardware failure if the cursor appears. Focus on software, drivers, and system integrity. Most cases are resolvable without data loss.

Basically, start with Safe Mode and work from there.

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