Microsoft .NET Framework - "Invalid XML document. The document does not have a root element." What is this?

Question

Hey I've already seen the same question but without the solution...
I've got the same problem there and I don't really know what to do. I also followed the steps of the answer but the error notification still occures. Everytime im starting my computer it shows up again (btw also after i "clean booted). I've tried to use the repair tool but it doesn't help me really out.
And here is the full detail text:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.Xml.XmlException: Invalid XML document. The document does not have a root element.
at System.Xml.XmlDocument.Save(String filename)
at HPSSFUpdater.UpgradeUpdater.IsUpdateNeeded()
at HPSSFUpdater.View.MainWindow._bgWorker_DoWork(Object sender, DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll

----------------------------------------

HPSSFUpdater
Assembly Version: 8.11.0.1
Win32 Version: 8.11.0.1
CodeBase: file:///C:/Program%20Files%20(x86)/Hewlett-Packard/HP%20Support%20Solutions/Modules/HPSSFUpdater.exe

----------------------------------------

System
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll

----------------------------------------

System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

----------------------------------------

System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

----------------------------------------

System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

----------------------------------------

System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll

----------------------------------------

System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll

----------------------------------------

WindowsBase
Assembly Version: 4.0.0.0
Win32 Version: 4.8.9032.0 built by: NET481REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/WindowsBase/v4.0_4.0.0.0__31bf3856ad364e35/WindowsBase.dll

----------------------------------------

HP.SupportFramework.Common
Assembly Version: 8.0.0.0
Win32 Version: 8.19.48.1
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/HP.SupportFramework.Common/8.0.0.0__41bdec5abf54f6dc/HP.SupportFramework.Common.dll

----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

I hope I'll get an asnwer soon and i put some screenshots of the problem into the Attachment!

Answer 1

Hi @Freezxp ,

Please try following and let me know if any of the suggestions work.

1. Try to use SFC tool. Please first try to open an elevated command prompt and run DISM.exe /Online /Cleanup-image /Restorehealth. It may take several minutes for the command operation to be completed, please kindly wait and see if any error will be reported. Then please try to run sfc /scannow to scan all system files. See this document: Use the System File Checker tool to repair missing or corrupted system files for more details.
2. Please try to download and install the latest version of .NET Framework 4.8.
3. Try to use Windows Defender to scan your machine(Settings > Privacy & Security > Windows Security > Virus & threat protection > Scan options > Full scan > Scan now).
4. Try to enable ASP .NET 4.8 by searching and opening "Turn Windows features on or off" feature > expand .NET Framework 4.8 Advanced Services > check ASP .NET 4.8 option > OK.

Besides, if you installed any applications/removed any files before this error appeared, please let us know.

Best Regards,
Tianyu

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