当我们想要将自己正在使用的win10操作系统升级更新到win102004版本的话，对于在更新的过程中出现的WIN10系统更新2004版本卡在49%一直不动的情况，小编觉得我们可以先检查一下自己的网络，如果没有问题还有可以在管理员权限下使用命令提示符来修复。详细内容就来看下小编是怎么做的吧~

WIN10系统更新2004版本卡在49%

可能是因为您的更新组件有缺失的情况。

请您尝试下方方法，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."