小编分享0x80070490错误代码是什么意思（30021错误代码是什么意思）

我们有时候在使用电脑的时后会遇到提示错误代码“0x80070490”，但是有很多的小伙伴目前还不清楚碰到这个错误代码应该如何修复，下面就和小编一起来看看应该如何去解决这个问题吧。

0x80070490错误代码解决办法

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:allusersprofileApplication DataMicrosoftNetworkDownloaderqmgr*.dat" -ErrorAction SilentlyContinue

Write-Host "3. Renaming the Software Distribution and CatRoot Folder..."

Rename-Item $env:systemrootSoftwareDistribution SoftwareDistribution.bak -ErrorAction SilentlyContinue

Rename-Item $env:systemrootSystem32Catroot2 catroot2.bak -ErrorAction SilentlyContinue

Write-Host "4. Removing old Windows Update log..."

Remove-Item $env:systemrootWindowsUpdate.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:systemrootsystem32

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 "HKLMSOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdate" /v AccountDomainSid /f

REG DELETE "HKLMSOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdate" /v PingID /f

REG DELETE "HKLMSOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdate" /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."

方法二

使用sfc /scannow和Dism自动扫描和修补系统档案，然後再重启电脑：

1、右键点击任务栏上的Windows图标，选择【Microsoft Powershell(管理员)】。

2、逐一输入以下指令：

Dism /Online /Cleanup-Image /CheckHealth

Dism /Online /Cleanup-Image /ScanHealth

Dism /Online /Cleanup-Image /RestoreHealth

sfc /scannow

3、重启电脑。

4、如果出现”有一些文件无法修复“的回报，重复步骤1-3几次。