对win10系统准备升级更新的时候，有的小伙伴们可能遇到提示出错0x8007042B，对于这种问题小编觉得可能是因为我们系统更新的时候出现了一些问题，可以在指定的系统运行DiagPackage.diagpkg程序即可，来看看详细操作吧。
方法一：
1、首先按下快捷键“ctrl+alt+del”打开任务管理器。
2、然后找到其中的恶意程序，右击选择“结束任务”。
3、然后再次尝试win10系统的更新即可。
方法二：
1、可到以下途径，尝试运行“DiagPackage.diagpkg”
C:WindowsdiagnosticssystemWindowsUpdateDiagPackage.diagpkg
2、如果以上不行，试试按查找>Powershell（选择 ISE）>右键>用管理员运行>把以下拷贝到里面
运行>运行完后重启电脑>然后再试试看。
$arch = Get-WMIObject -Class Win32_Processor -ComputerName LocalHost | Select-Object AddressWidth
Write-Host "1. Stopping Windows Update Services..."
Stop-Service -Name BITS
Stop-Service -Name wuauserv
Stop-Service -Name appidsvc
Stop-Service -Name cryptsvc
Write-Host "2. Remove QMGR Data file..."
Remove-Item "$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."
