When you try to run some tasks created using Task Scheduler on your computer, you may receive a message Task Scheduler service is unavailable. This article from MiniTool provides you with effective ways to fix errors.

"Task Scheduler service is unavailable" error

Task Scheduler is a built-in Windows utility that allows you to schedule and automate a variety of computer tasks and processes. Sometimes, you are unable to run the task due to the error "Task Scheduler service is unavailable". Task Scheduler will try to reconnect to it."

If you rely on Task Scheduler to perform automated tasks or actions, you may be adversely affected by this bug. It may interfere with scheduled backups, prevent software updates or installations, disrupt system maintenance routines, and impede other planned operations.

In the following guide, you will find multiple methods to help you fix the Task Scheduler Service Unavailable issue error.

Fix "Task Scheduler service is unavailable" error

Method 1: Change network conditions

The "Task Scheduler service is unavailable" error may be caused by the network condition settings selected for the task. This condition sets the task to run only when the specified network connection is available. Therefore, you can try to disable the network condition settings for the affected tasks by following the instructions below.

Step 1: Right-click the Start button and select Run to open the Run dialog box.

Step 2: Type taskschd.msc into the box and press Enter.

Step 3: In the left pane, click the arrow in front of Task Scheduler Library to expand it.

Step 4: Find and right-click the task in which the error occurred, and select Properties.

Step 5: Switch to the Conditions tab. Under Network, uncheck the Launch only when the following network connection is available box (if it is checked), and then click OK.

Method 2:Modify scheduled startup registry keys

Registry Editor allows you to change settings not shown in the user interface, including system policies, installed applications, and more. You need to change the Start DWORD value of the Schedule registry key to Automatic to fix the "Task Scheduler service is unavailable" error. The steps are as follows.

Step 1: Open the Search box, type regedit, then press Enter to open Registry Editor .

Step 2: Type the following command in the address bar and press Enter.

ComputerHKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesSchedule

Step 3: In the right pane, find and right-click Start REG_DWORD and select the Modify... option.

Step 4: Type 2 in the Value Data box and click OK to apply the changes.

Method 3: Edit the TimeBrokerSvc registry key

When the Task Scheduler service is disabled, a "Task Scheduler service is unavailable" error may occur. You can resolve this issue by changing the Start DWORD value of the TimeBrokerSvc registry key as shown below.

Step 1: Open Registry Editor, type the following command in the address bar, and then click Enter.

ComputerHKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTimeBrokerSvc

Step 2: In the right pane, right-click Start REG_DWORD and select Modify….

Step 3: Change the numeric data to 3 and click OK.

Method 4: Rename the Tree registry key

This error may be caused by a corrupted subkey in the Tree registry key. Therefore, you can rename the Tree registry key to fix these subkeys and see if that fixes the error.

Tip:

Performing this task requires you to make registry changes. We recommend that you back up your registry in case problems arise. This backup tool - MiniTool ShadowMaker can help you back up your data.

The following are the steps to rename the Tree registry key.

Step 1: Open Registry Editor and navigate to the following address.

ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionScheduleTaskCacheTree

Step 2: In the left pane, right-click the Tree folder and select Rename.

Step 3: Type Tree.old into the box and press Enter.

Method 5: Reset your computer

Factory reset Windows is the last option to fix "Task Scheduler service is unavailable" error. This solution can fix system files or other registry issues that are causing the error. But the software will be cleared after reset. Therefore, please be careful when using this method.

Warm Tips:

If your files are lost due to registry corruption or computer reset, how do you recover them? You can choose reliable recovery tool to recover them losslessly. MiniTool Power data recovery is a good choice. This free data recovery software is an expert in recovering data lost due to virus attacks, accidental deletion, etc.

Conclusion

This is how to fix Windows 10 Task Scheduler service unavailable issue. You can try these methods described in this article to get the job done.

Is the above task scheduler service unavailable? Try these fixes for details. For more information, please pay attention to other related articles on the PHP Chinese website!

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