Backup issues

Hello,

update your system (even the optional ones) and run a check using the command sfc /scannow; if it detects errors and repairs them all, try again to back up your system, otherwise try repairing it with the DISM command.

++

Hello,

Thank you for your response.

I have already run the sfc command .... several times, and I always get the same result: 'No integrity violations.'

I have checked all the HDDs and SSDs: no bad sectors.

However, I continued to explore the forums and found that I am not an isolated case. The error '4104' may stem from a 'permissions' issue ??

If I check the Event Viewer in W11, during the backup execution period, there are error messages:

'Error creating COM class for the provider ....'

The problem is that I don't see how to fix this error.

Thank you in advance for your help.

I executed the DISM command. Result:

'The restoration has been successfully performed.

On the forums, I found this:

Displaying a VSS IVssWriterCallback error while creating a backup

Problem:

The event log ID 8194 is logged when running a backup. An example of the error is shown below:

Volume shadow copy service error: unexpected error querying the IVssWriterCallback interface. h = 0x80070005. This is often due to incorrect security settings in the writer or requester process.

Operation:
Gathering data from the writer

Context: Writer class ID: {57af97e4-4a76-4ace-a756-d11e8f0294c7} Writer name: SPSearch VSS Writer instance ID
:
{e959c0c6-8ce8-4f80-9f2d-9e4deb1d4596}

Note that the error details may vary.

Cause:

Note: If this error is logged with event ID 12293, refer to the knowledge base article Error: VSS snapshot creation failed.

Note: If this error is logged with event ID 4001, refer to the knowledge base article Backup failure with VSS event 4001.

This error is caused by incorrect or missing COM access permissions and does not affect the use of Image for Windows.

Solution:

To set the correct permissions and prevent the error from occurring, follow the instructions below:

1. Press and hold the Windows key and press R to bring up the Run dialog. Alternatively, if Run... is available in the Start menu, you can access it from there.
    
2. Type dcomcnfg in the box and click OK. The Component Services window appears.
    
3. In the left part of the window, expand the Component Services section, then the Computers section.
    
4. Right-click on My Computer (listed in the Computers section) and select Properties from the context menu.
    
5. Click on the COM Security tab. The My Computer Properties dialog appears.
    
6. Click the Default Access Permissions... button in the Access Permissions section. The Access Permissions dialog appears.
    
7. In the Group or user names area, click the Add. button.
    
8. Type Network Service in the box and click OK.
    
9. Click OK in the Access Permissions and My Computer Properties dialog boxes to close them.
    
10. Restart Windows.

I tried but when I enter 'Network Service', I get a message indicating that the service does not exist.

Hello everyone and a very Happy New Year 2024,

I am reaching out to you regarding my backup and restore issue with EASEUS TODO BACKUP software. After several interventions from the technical support (remote control of the PC), I am still in the same situation. The backups work, but during the verification of the backup, the image is 'Corrupted'. The 'Technicians' ran several tests, disk analysis, verification of the integrity of W11... without any results. The technical support finally concluded that this bug could only originate from one of the software installed on my PC. I initiated a backup by starting the PC with WINPE. Thus, no software is running, and I get the same result. I checked the drivers of the PC components from the manufacturer's websites with no results (I had already done this a month ago).

The various analyzes of the HDD, SSD, and W11 file integrity showed no anomalies. All updates for W11 have been completed, including the optional ones. I initiated a repair of W11 this morning using TWEAKINGCOM Windows Repair without any changes whatsoever.

The last email I received yesterday from technical support is: 'We can no longer do anything for you'???

For your information, when I select the backups, thus the 'Corrupted' images, EASEUS takes control and displays the folder hierarchy. From there, I can restore a directory, folder... without any problems. I don’t understand why the backups are usable from EASEUS's file explorer on a 'corrupted' image but not through the restore procedure.
I remind you that this software is paid and that I renew my license every year.

Thank you in advance for your help.

Here is my configuration:

Windows 11 64 bits

Processor: RYZEN 7 5800X

48 GB of RAM: DDR4 3200 MHz

Graphics Card: GEFORCE MSI 3060 TI RTX GAMING TRIO X 8GD6X

Motherboard:

1 SSD M2 Samsung NVME 500 Go for the system

1 SSD of 250 GO reserved for a DAW application

1 SSD of 500 GO for Steam

1 HDD 3 TO for data

1 ASUS Blu-ray burner

Power Supply: MSI A850GL PCIES

Cooling: CORSAIR H60I PRO XT

Hello,

Following my backup issue with EASEUS TOTO BACKUP, I have tested other software to arrive at the same result.

Today, I downloaded and ran the software 'Easy Backup'. I started the system backup. This software generates a log. This log shows many lines of errors: 'access denied' on numerous files. I believe the problem must be the same with the data disk backup and the other disks. Do you think, as I do, that this might be the cause of the backup issues?

Thank you in advance for your help.

Hello,

Thank you for your response. I checked the various logs in the 'Event Viewer' of Windows 11, and there is no trace of these access errors.

Only the log generated by the 'Easy Backup' software mentions it.

Hello,

I sent the error log to the EASEUS hotline. Here is their response:

It seems that the software is unable to copy files from the C: Drive. In this case, please check if you have granted all permissions for the C: Drive.

Thank you for your response. For your information, I have been using backup software for years, making backups on 4 external hard drives, 1 for each source drive: system, data, and for the backup of 2 SSDs reserved for specific applications. I must admit that I have already had the chance to use restorations for directories, folders... I have already had the opportunity to restore the system after an issue, SSD M2 failure, without having to reinstall Windows 11.

As for the backups, I always run the software in 'Administrator' mode, but the problem I am encountering with the backups is identical for the 4 source drives. I am unable to determine since when I have been experiencing this issue, knowing that I never checked the image. However, I know that until a certain date there were no problems since restorations were functioning without issue. The only significant modification to my PC was the replacement of the motherboard in May 2023.

I just executed the XCOPY command in administrator mode. The copy was done without any issues: 340 items copied.

I checked the firewall and found no censorship, but I don’t really master this subject. However, I wanted to share a detail regarding this backup issue. Regardless of the 'source' disk and the 'target' disk, the problem is the same: 'damaged image'. When I check the backup log, there are no errors. However, when I generate a report for the hotline, I noticed errors:

I find the same error multiple times in the log 'VSSFREEZE.LOG'

'40:09] [VssClient::CheckSelectedWriterStatus @ select.cpp:687] OUTPUT:

ERROR: Selected writer 'System Writer' is in failed state!

- Status: 8 (VSS_WS_FAILED_AT_PREPARE_SNAPSHOT)

- Writer Failure code: 0x800423f0 (<Unknown error code>)

- Writer ID: {e8132975-6f93-4464-a53e-1050253ae220}

- Instance ID: {79d279e6-f74d-410c-917d-a19734eadf19}'

I forgot to mention that regardless of the image (system, data, etc.), if I access the image through the file explorer of the software, I have all the directories, folders, etc., and I can restore any element to its original location or another location without any problem. However, if I try to restore the system in its entirety using the restoration procedure offered by Todo Backup, either from the recovery media (DVD or USB stick) or WinPe, the restoration does not work, but before it crashes, the software formats the target. This happened to me a month ago, and I had to reinstall W11.