Task Scheduler service is not available

Hello, I am asking for help with a corrupted Task Scheduler.
Using the WIndows 11 Manager- Registry Tool, I deleted several registry keys related to a program I had uninstalled. The registry has been backed up.
After this operation, the task scheduler and all programs running from it stopped working properly - I receive the message "Task Scheduler service is not available. Task Scheduler will attempt to reconnect to it."
After confirming this message, the scheduler starts, but the programs added there do not start at system startup.
Attempting to restore a copy of the registry ends with a message that not everything has been added. It doesn't fix the task schedule. There are many entries in the registry copy file unrelated to the key removed by the tool, but nothing related to the schedule either. I don't know how it's possible that the schedule got corrupted.
In the service manager, the task scheduler is set to Enabled and Automatically and it turns on. The problem is with the error that pops up automatically when turned on when the scheduler goes to the Task Scheduler Library.
Could the registry tool delete what it shouldn't and the backup didn't include it?

Unless you have a registry backup prior to your changes, and you can successfully restore same -- it sounds like you cannot -- not even an in-place repair install will fix Registry problems like the ones you explain in your post. If you can't find a better fix, you may have to wipe the disk and perform a clean install of Windows to set everything back to rights. Sorry for your troubles: this is a tough one!
--Ed--

I have a copy of the registry and restored it correctly using the same Windows 11 Manager, however it didn't help.

Then the last chance youve got is to use a Restore Point to rollback the computer to an earlier date. If that does not fix it, then @Ed Tittel advise would apply.

gregor said:

WIndows 11 Manager- Registry Tool

Click to expand...

gregor said:

... using the same Windows 11 Manager

Click to expand...

What tool?

If you made a complete backup of the Registry then you could restore most of its hives manually in the command prompt whilst booted from an installation disk.
You did not mention how you backed up the HKCU hive.


All the best,
Denis

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