In reply to homer__simpsons's message of 6 Feb 2026:
Some of the tasks I received completed in less than 20 minutes, some took 2-6 hours (displaying at 99.987% or 100% for hours). This (21h+) is displaying at 100%.

The task: https://lhcathome.cern.ch/lhcathome/result.php?resultid=432278682
The workunit: https://lhcathome.cern.ch/lhcathome/workunit.php?wuid=238897618It is very usual when a Theory task is running for more than 1 day. Up to >10 days (very rare)
Your task with the herwig7 generator can last longer than 1 day. Let it run.
You may show the progress when using "Show Graphics" from BOINC Manager.
Highlight the running task and press the "Show Graphics" button. A local webpage will popup. Press the Logs link and then the running.log.

Most errors occur on the 670±1s
It's quite random

The Theory app is now available on Windows via the Windows Subsystem for Linux (WSL). Documentation for the setup is available here, with Windows-specific instructions here.

TL;DR

1. Enable WSL
   
2. Install the BOINC WSL image
   

I missed cvmfs_config setup

When task duration exceeds certain limits, it is easy to get lost among thousands of seconds...
I made a simple spreadsheet for my own clarification.
It looks as follows:

Would the machine crash have caused the Theory task to completely restart?When a PC crashed and/or BOINC is not properly shutted down, VirtualBox is not able to save the VM-state to disk.
After BOINC-startup the task errors out or when you're lucky/unlucky, the VM is starting the job from the beginning.
The progress of the task in runRivet.log on disk is not updated any longer, but the progress can still be seen with BOINC Manager's "Show Graphics" .

BTW: https://lhcathome.cern.ch/lhcathome/workunit.php?wuid=238232604 was a resend and the original client returned a valid result a bit too late. I would abort that task.