How-To Geek

Having decided to change some update settings in the Windows 7 Home Premium Task Scheduler in MMC I find that when I click on the Conditions tab a message pops up saying, MMC has detected an error in snap-in and will unload it.
As a result I cannot make any changes to the settings.

Relaunching the Task Scheduler does not resolve the problem. A further dialogue box says the snap-in is unavailable.

Although I can usually solve all my computer problems this one has got me beaten.

How does one replace missing snap-ins?

Irv,

Thank you for your reply. However, I had already put "MMC has detected an error in snap-in and will unload it" into Google and Bing and had a look at very many messages. Unfortunately none offered a satisfactory reply to solve the problem (which appears to be quite a common one).
One option is to do a "Repair" of the operating system but that seems too drastic for a small problem. I don`t want to have to install all the MS updates again.

The Task Scheduler is the only one causing problems in the MMC. All the others work well. Very frustrating.

Roger.

Irv,

"I think what I had to do was EXPORT all tasks, then delete them all? Then start importing them one at time, and after each make sure they worked...."

I don`t suppose by chance that you recall exactly how you did this, please? Where did you import them back from if you had deleted them after exporting?

My computer was also initially a Vista Home Premium, upgraded to Windows 7 Home Premium.

The problem wasn`t present a month or two back.

Roger.

Yes, my Microsoft .NET Framework is version 4.5, and has been for some time, but if that is the culprit why would it only affect the Task Scheduler in MMC?

I can use Event Viewer, Performance Monitor, etc., without any problems at all. It`s just task Scheduler which throws a wobbly.

Roger.