首先運(yùn)行Windows Update疑難解答，1. 運(yùn)行Windows Update疑難解答；2. 執(zhí)行sfc /scannow修復(fù)系統(tǒng)文件；3. 使用DISM工具修復(fù)系統(tǒng)映像；4. 運(yùn)行chkdsk檢查并修復(fù)磁盤錯(cuò)誤；5. 清理SoftwareDistribution文件夾中的更新緩存；6. 臨時(shí)關(guān)閉第三方殺毒軟件；7. 執(zhí)行干凈啟動(dòng)排除軟件沖突；8. 最后可嘗試修復(fù)安裝Windows。多數(shù)情況下前幾步即可解決0x80070570錯(cuò)誤，問(wèn)題最終通過(guò)修復(fù)損壞的系統(tǒng)或更新文件得以完整解決。

The Windows Update error 0x80070570 – "The file or directory is corrupted and unreadable" – usually means that some system files or update components are damaged, preventing Windows from installing updates properly. This can happen due to disk errors, corrupted system files, or issues with the Windows Update cache.

Here’s how to fix it step by step:

1. Run the Windows Update Troubleshooter

Microsoft provides a built-in tool that can automatically detect and fix common update issues.

• Press Windows I to open Settings.
• Go to Update & Security > Troubleshoot > Additional troubleshooters.
• Find Windows Update, click Run the troubleshooter.
• Follow the prompts and apply any recommended fixes.

This may resolve minor corruption or service issues without further steps.

2. Run SFC (System File Checker)

SFC scans and repairs corrupted or missing system files.

1. Open Command Prompt as Administrator:
   • Press Windows S, type cmd, right-click Command Prompt, and select Run as administrator.
2. Type the following command and press Enter:

   sfc /scannow

3. Wait for the scan to complete (can take 15–30 minutes).
4. If it finds and fixes issues, restart your PC and try updating again.

If SFC fails to fix the issue or can't repair some files, move to the next step.

3. Run DISM (Deployment Image Servicing and Management)

DISM repairs the Windows system image that SFC relies on.

In the same Admin Command Prompt, run these commands in order:

DISM /Online /Cleanup-Image /CheckHealth

DISM /Online /Cleanup-Image /ScanHealth

DISM /Online /Cleanup-Image /RestoreHealth

Wait for each to complete (the last one may take 10–20 minutes).
After it finishes, restart your computer and run sfc /scannow again to ensure all files are fixed.

4. Check for Disk Errors

The error might stem from a corrupted hard drive or SSD.

1. Open Command Prompt as Admin.
2. Run:

   chkdsk C: /f /r

   (Replace C: if Windows is installed on a different drive.)

3. It may ask to schedule the scan on the next restart — type Y and restart your PC.

The system will check for bad sectors and repair readable data. Let it complete before using the PC.

5. Clear Windows Update Cache

Corrupted update files in the SoftwareDistribution folder can cause this error.

1. Open Command Prompt as Admin.
2. Stop the Windows Update services by running:

   net stop wuauserv
   net stop cryptSvc
   net stop bits
   net stop msiserver

3. Rename the SoftwareDistribution folder:

   ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

4. Restart the services:

   net start wuauserv
   net start cryptSvc
   net start bits
   net start msiserver

Now try checking for updates again.

6. Temporarily Disable Antivirus or Third-Party Security Software

Sometimes third-party antivirus tools interfere with Windows Update file extraction, leading to corruption errors.

• Temporarily disable your antivirus (especially if it's not Microsoft Defender).
• Try running Windows Update again.

If the update succeeds, consider adjusting your antivirus settings or switching to a more compatible solution.

7. Perform a Clean Boot (Check for Software Conflicts)

Background programs can interfere with updates.

1. Press Windows R, type msconfig, and press Enter.
2. In the Services tab, check Hide all Microsoft services, then click Disable all.
3. Go to the Startup tab and click Open Task Manager.
4. Disable all startup items.
5. Restart your PC.

Now try installing the update. If it works, re-enable services gradually to find the culprit.

8. Repair Install (Last Resort)

If nothing works, perform a repair install using the Windows Media Creation Tool:

• Download the tool from Microsoft’s official site.
• Create installation media or run it directly.
• Choose Upgrade this PC now — this reinstalls Windows without deleting your files or apps.

This replaces all system files with clean ones, which usually resolves deep corruption.

Bottom line: Start with SFC and DISM, then check disk errors and clear the update cache. Most cases of error 0x80070570 are resolved with these steps. Only go for a repair install if all else fails.

Basically, it's about fixing corrupted files — whether in the OS, disk, or update system.

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