What if the backup task fails with backup error code 0x8100002F?
This post onMiniTool Websitewill introduce the causes and solutions of this error for you.
What Is Backup Error Code 0x8100002F?

This error code usually appears altogether with the fault signal:The backup completed but some files were skipped.
Windows 10 Backup not working?
How to Fix Windows Backup Error Code 0x8100002F?
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This might also do the trick for you when you run into backup error code 0x8100002F.
To do so:
Step 1.
PressWin+Sto evoke thesearch bar.

Typecmdto locateCommand Promptand right-press it to chooseRun as administrator.
Typechkdsk c: /f /r /xand hitEnter.
Reboot your system to perform the disk-checking process.

LaunchCommand Promptwith administrative rights.
In the command window, typesfc /scannowand hitEnter.
It will take 15-20 minutes to complete the scanning process.
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As soon as it is over, reboot your machine.
LaunchCommand Promptas an administrator again.
After the process is done, reboot your setup to inspect if error code: 0x8100002F still exists.

What is the DISM does not support servicing Windows PE issue?
How to fix it?
This guide will offer you some detailed solutions!

Fix 3: Modify the Registry
Step 1.
PressWin+Raltogether to evoke theRunbox.
If not, it’s possible for you to delete the entire folder.

double-check to check all the folders underProfileListand reboot your rig after modifying the registry.
Fix 4: Move the Problematic Library Folder
Step 1.
When you are prompted by the error alert, check the location mentioned in it.

Then, find the path of the problematic file or folder by clickingView skipped files.
Execute the backup task again to see if Windows backup error code 0x8100002F disappears.
Heres how to do it:
Step 1.

Open theRundialog > typecontrol> hitEnterto launchClassic Control Panel.
FindBackup and Restore (Windows 7)underSystem and Securityand choose it.
PressSet up backupon the right-hand section of the screen.

TickLet me chooseand hitNext.
ExpandData files> yourUserName Libraries>Additional Locations, and then deselectAppData folder,Contacts, andSearches.
Click onNext>Save tweaks and run backupto start the operation.

To address this error, try updating or uninstalling the corresponding chipset driver:
Step 1.
Typedevice managerin thesearch barand tap onEnter.
FindUniversal Serial Bus controllersand expand it.
Right-click onNVIDIA USB EHCI chipsetand chooseUpdate driver.
ClickSearch automatically for driversand follow the on-screen guidelines to finish the installation of the driver version.
This operation will remove the driver supplied by NVIDIA and allows its generic equivalent driver to run.
Reboot your machine to see if you’ve got the option to create a backup without errors.
I manage to remove Windows backup error code 0x8100002F from my computer with the solutions in this article.
Here, it is suggested to back up your files with a piece offree backup software MiniTool ShadowMaker.
Now, lets see how to create a file backup with it:
Step 1.
Download & install MiniTool ShadowMaker and you’re able to enjoy its service for free within 30 days.
MiniTool ShadowMaker TrialClick to Download100%Clean & Safe
Step 2.
Launch this program and click onKeep Trial.
Go to theBackuppage > hitSOURCE> pressFolders and Filesto choose the backup source.
As for selecting the destination path, go toDESTINATION.
Here, we also recommend you back up your files to an external drive or a USB flash drive.
PressBack Up Nowto start the process.