After investigating these users feedback, we can get some conclusions for why that happens.
Corrupted Windows Security Another possible reason triggering DLLRegisterserver failed 0x80070715 is the damaged Windows Security app.
Disabled Volume Shadow Copy Volume Shadow Copy is a quite important feature to perform a backup.

When it is disabled, you cannot continue the System Restore and thats why 0x80070715 happens.
It may help fix some glitches in your PC and add new features.
Step 2: Once the window opens, inWindows Update, you could chooseCheck for updatesfrom the right panel.

Then you’re free to follow the on-screen instructions to download and set up the available version.
To enable Volume Shadow Copy services, you’re free to do as follows.
Step 1: Right-click onStart(the Windows icon) to chooseRunfrom the list and typeservices.mscto enter theServiceswindow.

By doing that, you might add information to the Registry for use by Windows.
Step 1: InputCommand Promptin Search and choose the Best match result to run it as an administrator.
Step 2: Then punch in the following commands and pressEnterafter each one of them to execute the commands.

After doing that, just reboot the system and see if the DLLRegisterserver failed 0x80070715 still persists.
There are three ways to do that and you might choose it based on your situation.
The apps data will be deleted and you could reset your gear.

Way 2: Reset Windows Security via PowerShell
Step 1: Open theRundialog box by pressing theWin + Rkey.
What is Windows PowerShell?
What are the differences between PowerShell and CMD?

This post shows you the answers.
Step 1: OpenRunby pressingWin + Rkey and inputservice.mscto open up theServicesscreen.
Step 2: Scroll down through the list to find and right-click onWindows Update.
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Fix 6: Reset Windows
The last method is to reset your Windows.
To reset your PC in Windows 11, go toStart > tweaks > System > Recovery > Reset PC.
Then if everything goes well, you have resolved DLLRegisterserver failed 0x80070715.

Go to download and install this program and you will get a 30-day trial version.
Step 2: In theBackuptab, theSOURCEsection has been selected with the System-contained partition.
Step 3: Choose your backup destination and youd better choose an external drive.

Besides, you could also customize the backup scheme and schedule in theOptionsfeature.
Step 4: After all configs are ensured, you might clickBack Up Nowto perform the backup.
It is hard to avoid but in case of any larger troubles, you could try backup.

It is easy, quick, and low-cost.
Go and come to try it!
If you need any help when using MiniTool software, you may contact us via[email protected].

DLL can promote modularization of code, code reuse, efficient memory usage, and reduced disk.
First of all, go to theC:/Windows/System32directory and then copy the DLL file related to the error.
Then go to theC:/Windows/SysWow64directory, and then right-hit the empty space within the SysWow64 folder and selectPaste.