What To Do When Your Windows Troubleshooting Wizard Cannot Continue (An unexpected error has occurred)

While upgrading their operating systems, Microsoft focused a lot towards making them smart, automatic machines. This was evident by the way they worked towards their new Automatic Troubleshooters and online fixes.

As of present, a Windows user would need much less support of a tech support agent than a few years ago. No doubt many major known bugs were fixed and smart troubleshooters introduced. However, imagine a situation if the troubleshooter itself malfunctions and gives an error.
One such reported case is when we get the following error:

An unexpected error has occurred. The troubleshooting wizard can’t continue.

This issue usually occurs with built-in troubleshooters. If you face this issue, the first step would be restarting the system and checking if the troubleshooter works.
If it doesn’t help, do the following.
Open a Notepad file and copy-paste the following lines:
@echo off
net stop wuauserv
cd %systemroot%
ren SoftwareDistribution SoftwareDistribution.old
net start wuauserv
net stop bits
net start bits
net stop cryptsvc
cd %systemroot%\system32
ren catroot2 catroot2.old
net start cryptsvc
regsvr32 Softpub.dll
regsvr32 Wintrust.dll
regsvr32 Mssip32.dll
regsvr32 Initpki.dll /s
echo Restarting Computer
shutdown.exe -r -t 00
Save this Notepad file on your Desktop as a .bat file and name it, say, Tfixer.bat.An unexpected error has occurred, The troubleshooting wizard can't continue
Now right click on the file and select Run as administrator. The file will run and re-register some concerned DLL files, after stopping some Windows Services, says Microsoft.

Once the process is complete, restart the system and check if the issue has been fixed or not.
Let us know if it helped you.