We've been managing a fleet of Lenovo Legion laptops for over 20 months without issues, but now every device has started failing. The problems include major lags in the start menu, unresponsive right-clicks, hanging applications, and persistent sign-in issues. We've seen multiple errors in the logs, notably related to `BackgroundTaskHost.exe`, `twinapi.appcore.dll`, and TLS credential creation. We've already attempted various troubleshooting steps like clearing cached credentials, resetting TLS settings, and even doing an in-place Windows 11 repair install, but the symptoms keep returning after a few days. We suspect this might be linked to a recent Windows update or a possible driver conflict, but we really want to avoid reimaging over 40 devices unless absolutely necessary. If anyone has run into similar issues or found a solution, your help would be greatly appreciated. Also, I might sweeten the deal with a bottle of Macallan 12 for a successful fix!
6 Answers
Have you checked if any recent Windows updates correlate with the timing of the issues? I noticed my system slowed down around when a Windows 11 update was applied, and I suspected it affected AAD.BrokerPlugin. You might want to roll back those updates or see if others experienced similar problems with that specific version.
Consider that it might be a deep corruption issue. If the repair isn’t lasting, it may be worth looking into a more thorough system evaluation or specific logs to pinpoint errors. If all else fails, backing up and reimaging might be the last resort.
I had a similar situation with a non-Lenovo device and it ended up being related to antivirus interference (like TrendMicro). You mentioned using Forticlient and Red Canary; perhaps that combination is playing a role. Have you tried uninstalling them temporarily to see if the problems persist?
Good idea! I removed Carbon Black to see if it was the issue, but it didn't work. I might need to try completely removing Forticlient as well.
Just throwing it out there—do you have a consistent image for all devices? Any slight differences can lead to these kinds of systemic issues. Also, was there a specific time frame where updates began causing problems? Keep an eye on that.
If it's just one user having trouble, you could try logging in as a different user and clearing some cache from their profile. Deleting content from the `AppData` folders can sometimes clear up strange app behaviors. Give that a shot if you haven't already.
I checked, but a lot of those folders were missing for the user. Still, it's worth looking into.
Updating all drivers and the BIOS can be a good move. Sometimes, vendors push out updates to fix these kinds of issues, and it can prevent a lot of headaches. Make sure all drivers are current before diving into deeper fixes.
Definitely check the update logs! It's worth looking into reverting or delaying updates temporarily to see if stability returns.