Category Archives: Scripts and Scripting

Resetting Windows Update on Domain Computers

Windows Update & WSUS have been a thorn in my side for many many years. When it works its great but when it doesn’t it can be very frustrating to figure out what went wrong. Over the years I’ve had to rebuilt WSUS twice, once when it just stopped pushing updates and another time where it imploded itself and corrupted the database. Recently we had a number of computers, around 10%, stop reporting back to WSUS for status. They also reported no updates available when checking for updates using WSUS. We tried all the troubleshooters, DISM cleanups, etc, but nothing seemed to work. I thought maybe it was WSUS again but that wouldn’t make sense with so many successfully getting updated. Even tried the Microsoft recommendations on resetting Windows Update but in our case BITS didn’t want to stop. And related to this we were getting Task Host errors on shutdown for those machines with the reason being “AutomaticUpdateHost” which would make sense if BITS was stuck.

After some testing we found that the Microsoft recommendations did work when in safe mode. Problem was doing this as easily with the least amount of downtime and hands on touching. To that end I created a series of three batch files. The first one, run as a administrator, will set the boot options to safeboot with networking and reboot:

bcdedit /set {default} safeboot network
shutdown -r -t 5

The second is most of the Microsoft recommendations along with others I’ve found on the internet:

@echo off
echo Stopping Windows Update and BTIS services…
net stop bits /y
net stop wuauserv /y
net stop appidsvc /y
net stop cryptsvc /y
echo Killing any windows updates in process
taskkill /im wuauclt.exe /f
echo Deleting some files…
del /s /q /f "%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr.dat" del /s /q /f "%ALLUSERSPROFILE%\Microsoft\Network\Downloader\qmgr.dat"
del /s /q /f "%SYSTEMROOT%\WindowsUpdate.log"
rd /s /q "C:\WINDOWS\SoftwareDistribution"
rd /s /q "%SYSTEMROOT%\system32\Catroot2"
del %USERPROFILE%\AppData\Local\Temp* /s /q
for /d %%x in (%USERPROFILE%\AppData\Local\Temp*) do @rd /s /q "%%x"
del %systemroot%\Temp* /s /q
for /d %%y in (%systemroot%\Temp*) do @rd /s /q "%%y"
echo Reset the BITS service and the Windows Update service to the default security descriptor.
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)
echo Deleting registry keys….
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
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v SusClientIDValidation /f
REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" /v LastWaitTimeout /f
REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" /v DetectionstartTime /f
Reg Delete "HKLM\Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" /v NextDetectionTime /f
echo Re-registering Windows Update components…
regsvr32.exe /s c:\windows\system32\atl.dll
regsvr32.exe /s c:\windows\system32\urlmon.dll
regsvr32.exe /s c:\windows\system32\mshtml.dll
regsvr32.exe /s c:\windows\system32\shdocvw.dll
regsvr32.exe /s c:\windows\system32\browseui.dll
regsvr32.exe /s c:\windows\system32\jscript.dll
regsvr32.exe /s c:\windows\system32\vbscript.dll
regsvr32.exe /s c:\windows\system32\scrrun.dll
regsvr32.exe /s c:\windows\system32\msxml.dll
regsvr32.exe /s c:\windows\system32\msxml3.dll
regsvr32.exe /s c:\windows\system32\msxml6.dll
regsvr32.exe /s c:\windows\system32\actxprxy.dll
regsvr32.exe /s c:\windows\system32\softpub.dll
regsvr32.exe /s c:\windows\system32\wintrust.dll
regsvr32.exe /s c:\windows\system32\dssenh.dll
regsvr32.exe /s c:\windows\system32\rsaenh.dll
regsvr32.exe /s c:\windows\system32\gpkcsp.dll
regsvr32.exe /s c:\windows\system32\sccbase.dll
regsvr32.exe /s c:\windows\system32\slbcsp.dll
regsvr32.exe /s c:\windows\system32\cryptdlg.dll
regsvr32.exe /s c:\windows\system32\oleaut32.dll
regsvr32.exe /s c:\windows\system32\ole32.dll
regsvr32.exe /s c:\windows\system32\shell32.dll
regsvr32.exe /s c:\windows\system32\initpki.dll
regsvr32.exe /s c:\windows\system32\wuapi.dll
regsvr32.exe /s c:\windows\system32\wuaueng.dll
regsvr32.exe /s c:\windows\system32\wuaueng1.dll
regsvr32.exe /s c:\windows\system32\wucltui.dll
regsvr32.exe /s c:\windows\system32\wups.dll
regsvr32.exe /s c:\windows\system32\wups2.dll
regsvr32.exe /s c:\windows\system32\wuweb.dll
regsvr32.exe /s c:\windows\system32\qmgr.dll
regsvr32.exe /s c:\windows\system32\qmgrprxy.dll
regsvr32.exe /s c:\windows\system32\wucltux.dll
regsvr32.exe /s c:\windows\system32\muweb.dll
regsvr32.exe /s c:\windows\system32\wuwebv.dll
echo Resetting Winsock…
netsh winsock reset
echo Resetting WinHTTP proxy…
netsh winhttp reset proxy
echo Resetting the services as automatic…
sc.exe config wuauserv start= auto
sc.exe config bits start= delayed-auto
sc.exe config cryptsvc start= auto
sc.exe config TrustedInstaller start= demand
sc.exe config DcomLaunch start= auto
echo Restarting services…
net start bits
net start wuauserv
net start appidsvc
net start cryptsvc
net start DcomLaunch
echo Telling Windows to detect updates…
wuauclt.exe /resetauthorization
wuauclt.exe /detectnow
wuauclt.exe /reportnow
PowerShell.exe (New-Object -ComObject Microsoft.Update.AutoUpdate).DetectNow()

Then finally once that runs through is the third batch file to set the computer back to a normal boot:

bcdedit /deletevalue {default} safeboot
shutdown -r -t 5

I put all three into a folder and placed it on the desktops of the troubled computers then ran each in sequence. First the computer rebooted in safe mode, then Windows Update gets reset along with deleting all temp files, then the computer reboots normally.

So far every computer this was run on has reported in. Not sure what causes this in the first place but at least we have a quick solution now.

Note: The script was written to be run in regular mode so its stopping services that are normally already stopped in safe mode but was just reused for this purpose on the machines where BITS kept getting stuck.

Check Uptime of Domain Computers

Recently we pushed some updates through GPO which ran at a users login to the domain. Weeks went by and I kept getting calls about people with old software that didn’t update. After some quick investigating these users were simply not rebooting or shutting down their computers and some were going on two months. On one hand that’s pretty good for Windows 10 machines but on the other they were missing important updates. After looking around I found that PsInfo.exe, part of the PSTools suite, would let me poll a computer for uptime but I wanted to poll all the computers and see how widespread this problem was.

First I started with a list of all computers taken from Active Directory using this PowerShell command to export them to a text file. Technically this command exports to a csv but I’m only taking one column so I skipped a step:

Get-ADComputer -Filter * -Properties Name | Select-Object Name | Export-CSV "C:\temp\ComputerNames.txt" -NoTypeInformation

Opening the file you should have a header of Name with all your workstations. I deleted the header and did a global find and replace to remove the quotes so I had a file with just the workstation names. Next I made a batch file with this single line:

For /f "tokens=*" %%i in (ComputerNames.txt) do psinfo uptime -nobanner \\%%i >> uptime.txt

I placed the batch file (CheckUptime.bat for me) in the same directory as PsInfo.exe and my ComputerNames.txt file. Run the batch file and it will step through each computer name in the file and check the uptime giving you something like this:

System information for \WSComputer2:
Uptime: 0 days 5 hours 24 minutes 57 seconds
System information for \WSComputer6:
Uptime: 2 days 17 hours 45 minutes 18 seconds
System information for \WSComputer23:
Uptime: 0 days 0 hours 42 minutes 41 seconds

I’m sure there is also a way to scrap the file and clean this up but it works for my needs.

Kixtarter – KiXtart Script Editor

KiXtart is a free-format scripting language written by Ruud van Velsen of Microsoft Netherlands.  Many companies have used KiXtart as there login script processor although as time goes by people are switching to purely GPO’s or VB script.  I personally still use it for my login scripts, it’s easy to understand and simply to deply.  Just copy a exe to each machine through GPO and edit your users profiles to run the exe and script at login.  In fact I was using it so much that wrote a KiXtart script editor with color highlighting of the keywords, a insert menu with all the commands, and some wizards for commonly used things.

The last update brought the software to v4.12 and will most likely be the last version released.  Download it here:

Kixtarter v4.12 – KiXtart Script Editor Installer