最近，Win10 2004更新正式推出，许多用户纷纷升级到最新版本。然而，有部分用户在更新过程中卡在49%的问题。其实，解决这个问题并不复杂。接下来，我们将为大家分享一些有效的解决方法，帮助你顺利完成系统更新，享受新版本带来的改进和功能。
win102004更新卡在49%怎么办
问题情况：
安装总是卡49％，重启过也没用。
解决方法一：
等待，在网络情况正常的话，多等一会，时间过长比如2个小时或以上再看看方法二。
解决方法二：
1、同时按【Win + X】键，点选【Windows PowerShell（管理成员）】
2、复制下面的程序码到刚打开的PowerShell里面，按回车
$arch = Get-WMIObject -Class Win32_Processor -ComputerName LocalHost | Select-Object AddressWidthWrite-Host "1. Stopping Windows Update Services..."Stop-Service -Name BITSStop-Service -Name wuauservStop-Service -Name appidsvcStop-Service -Name cryptsvcWrite-Host "2. Remove QMGR Data file..."Remove-Item "$env:allusersprofile\Application Data\Microsoft\Network\Downloader\qmgr*.dat" -ErrorAction SilentlyContinueWrite-Host "3. Renaming the Software Distribution and CatRoot Folder..."Rename-Item $env:systemroot\SoftwareDistribution SoftwareDistribution.bak -ErrorAction SilentlyContinueRename-Item $env:systemroot\System32\Catroot2 catroot2.bak -ErrorAction SilentlyContinueWrite-Host "4. Removing old Windows Update log..."Remove-Item $env:systemroot\WindowsUpdate.log -ErrorAction SilentlyContinueWrite-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 $env:systemroot\system32Write-Host "6. Registering some DLLs..."regsvr32.exe /s atl.dllregsvr32.exe /s urlmon.dllregsvr32.exe /s mshtml.dllregsvr32.exe /s shdocvw.dllregsvr32.exe /s browseui.dllregsvr32.exe /s jscript.dllregsvr32.exe /s vbscript.dllregsvr32.exe /s scrrun.dllregsvr32.exe /s msxml.dllregsvr32.exe /s msxml3.dllregsvr32.exe /s msxml6.dllregsvr32.exe /s actxprxy.dllregsvr32.exe /s softpub.dllregsvr32.exe /s wintrust.dllregsvr32.exe /s dssenh.dllregsvr32.exe /s rsaenh.dllregsvr32.exe /s gpkcsp.dllregsvr32.exe /s sccbase.dllregsvr32.exe /s slbcsp.dllregsvr32.exe /s cryptdlg.dllregsvr32.exe /s oleaut32.dllregsvr32.exe /s ole32.dllregsvr32.exe /s shell32.dllregsvr32.exe /s initpki.dllregsvr32.exe /s wuapi.dllregsvr32.exe /s wuaueng.dllregsvr32.exe /s wuaueng1.dllregsvr32.exe /s wucltui.dllregsvr32.exe /s wups.dllregsvr32.exe /s wups2.dllregsvr32.exe /s wuweb.dllregsvr32.exe /s qmgr.dllregsvr32.exe /s qmgrprxy.dllregsvr32.exe /s wucltux.dllregsvr32.exe /s muweb.dllregsvr32.exe /s wuwebv.dllWrite-Host "7) Removing WSUS client settings..."REG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v AccountDomainSid /fREG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v PingID /fREG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v SusClientId /fWrite-Host "8) Resetting the WinSock..."netsh winsock resetnetsh winhttp reset proxyWrite-Host "9) Delete all BITS jobs..."Get-BitsTransfer | Remove-BitsTransferWrite-Host "10) Attempting to install the Windows Update Agent..."if($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 BITSStart-Service -Name wuauservStart-Service -Name appidsvcStart-Service -Name cryptsvcWrite-Host "12) Forcing discovery..."wuauclt /resetauthorization /detectnowWrite-Host "Process complete. Please reboot your computer."3、忽略红字错误，重启电脑
4、运行Windows Update即可正常运行。
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