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0x80073701 更新错误，可能与您的更新组件缺失有关。
可以尝试下方方法，手动注册 Windows Update 组件：
1. 同时按【Win+X】键，点选【Windows PowerShell(管理员)】
2. 拷贝下方的程序码到刚打开的 PowerShell 里面，按回车
3. 忽略红字错误，重启电脑
4. 运行 Windows Update
$arch = Get-WMIObject -Class Win32_Processor -ComputerName LocalHost |
Select-Object AddressWidth
Write-Host 1. Stopping Windows Update Services…
Stop-Service -Name BITS
Stop-Service -Name wuauserv
Stop-Service -Name appidsvc
Stop-Service -Name cryptsvc
Write-Host 2. Remove QMGR Data file…
Remove-Item $env:allusersprofile\Application
Data\Microsoft\Network\Downloader\qmgr*.dat -ErrorAction SilentlyContinue
Write-Host 3. Renaming the Software Distribution and CatRoot Folder…
Rename-Item $env:systemroot\SoftwareDistribution SoftwareDistribution.bak
-ErrorAction SilentlyContinue
Rename-Item $env:systemroot\System32\Catroot2 catroot2.bak -ErrorAction
SilentlyContinue
Write-Host 4. Removing old Windows Update log…
Remove-Item $env:systemroot\WindowsUpdate.log -ErrorAction
SilentlyContinue
Write-Host 5. Resetting the Windows Update Services to defualt
settings…
sc.exe sdset bits
D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
sc.exe sdset wuauserv
D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
Set-Location $env:systemroot\system32
Write-Host 6. Registering some DLLs…
regsvr32.exe /s atl.dll
regsvr32.exe /s urlmon.dll
regsvr32.exe /s mshtml.dll
regsvr32.exe /s shdocvw.dll
regsvr32.exe /s browseui.dll
regsvr32.exe /s jscript.dll
regsvr32.exe /s vbscript.dll
regsvr32.exe /s scrrun.dll
regsvr32.exe /s msxml.dll
regsvr32.exe /s msxml3.dll
regsvr32.exe /s msxml6.dll
regsvr32.exe /s actxprxy.dll
regsvr32.exe /s softpub.dll
regsvr32.exe /s wintrust.dll
regsvr32.exe /s dssenh.dll
regsvr32.exe /s rsaenh.dll
regsvr32.exe /s gpkcsp.dll
regsvr32.exe /s sccbase.dll
regsvr32.exe /s slbcsp.dll
regsvr32.exe /s cryptdlg.dll
regsvr32.exe /s oleaut32.dll
regsvr32.exe /s ole32.dll
regsvr32.exe /s shell32.dll
regsvr32.exe /s initpki.dll
regsvr32.exe /s wuapi.dll
regsvr32.exe /s wuaueng.dll
regsvr32.exe /s wuaueng1.dll
regsvr32.exe /s wucltui.dll
regsvr32.exe /s wups.dll
regsvr32.exe /s wups2.dll
regsvr32.exe /s wuweb.dll
regsvr32.exe /s qmgr.dll
regsvr32.exe /s qmgrprxy.dll
regsvr32.exe /s wucltux.dll
regsvr32.exe /s muweb.dll
regsvr32.exe /s wuwebv.dll
Write-Host 7) Removing WSUS client settings…
REG DELETE HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate /v
AccountDomainSid /f
REG DELETE HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate /v
PingID /f
REG DELETE HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate /v
SusClientId /f
Write-Host 8) Resetting the WinSock…
netsh winsock reset
netsh winhttp reset proxy
Write-Host 9) Delete all BITS jobs…
Get-BitsTransfer | Remove-BitsTransfer
Write-Host 10) Attempting to install the Windows Update Agent…
if($arch -eq 64){
wusa Windows8-RT-KB2937636-x64 /quiet
}
else{
wusa Windows8-RT-KB2937636-x86 /quiet
}
Write-Host 11) Starting Windows Update Services…
Start-Service -Name BITS
Start-Service -Name wuauserv
Start-Service -Name appidsvc
Start-Service -Name cryptsvc
Write-Host 12) Forcing discovery…
wuauclt /resetauthorization /detectnow
Write-Host Process complete. Please reboot your computer.
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