使用win10系统电脑的时候，有些情况下可能就会遇到出现系统更新失败的情况，并且出现错误代码0x80070003。win10更新1909失败0x80070003怎么办?其实这是因为电脑在更新的时候出现了故障，可尝试重新更新或者是重装系统来解决问题。

win10更新1909失败0x80070003怎么办

方法一：

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;;CCLCSWR