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Windows 7, W7, 0x81000035, Invalid MediaID.bin, System Restore

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Old 05-19-2010, 02:59 PM   #1
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Join Date: May 2010
Posts: 1
OS: Windows 7 & MAC dual boot

Any chance anyone can help out with getting the (0x81000035) error for Invalid MediaID.bin on Windows 7 ?

I moved the backup sets to an external HD having the same issue as everyone else, the backups are taking up all the space on the system and don't want to delete them, so moved them to my External HD.

Every time I try to do a restore from the backup sets on my HD to get everything back, it gives me this error (0x81000035)

G:\ (this is my external drive)

Windows Backup encountered invalid MediaID.bin file on the drive where the backup is saved. Restore from a different backup or delete the MediaID.bin file and try to create another backup. The MediaID.bin file can be found under <backup location> \MediaID.Bin <backup location>\<machine-name-folder>\MediaId.Bin. (0x81000035)

I am searching everywhere online and basically only find solutions which I can't get to work that are for Vista not Windows 7

Here is what I've found regarding Microsoft:
Since all Microsoft would like to do is charge through CSS regarding Windows 7 invalid or corrupt MediaID.bin issues. You gotta love that! So they have a solution, but don't want to make it available! See this under "Resolution":


Here is what I've tried thus far...

I am trying to restore my full system, not just a few files on Windows 7.

I've tried following these instructions that I've found in a few locations in reference to Windows 7 that appear to originally be for Vista and I just get another error on the CMD as the Admin: (0x80070005)

If you get the following error when restoring your backup to its original HD (see error code bellow)

Error Description:

When you use the Restore Files option to restore a backup file on a Windows Vista-based computer, you may receive the following error message:

The restore did not finish successfully. Error code:
The backup file could not be found. Check your hardware configuration or restore from a different backup (0x8100001A).

and the Mediaid.bin file is corrupted or lost, then use the following instructions for rebuilding it:

1.Unzip the sdutil.zip file and rename it from sdutil.ex_ to sdutil.exe
2.Copy the sdutil.exe to the root of the driver which contains the backup files
3.Open the folder Catalogs located bellow the folder BackupSet “aaaammdd” “xxxxxx”
4.Copy the file GlobalCatalog.wbcat to the root of this HD
5.Go to Start -> Execute and type CMD.exe
6.At this “DOS” window type: sdutil mediaid GlobalCatalog.wbcat [HD letter (as an example D:\)]
7.A new MediaID.bin is created
8.Try to restore the backup as usual using the advanced restore option and next the option restore an older backup created in this machine
9.If done: it’s over!
10.If it fails: Map a network driver at your LAN
11.Copy the MediaId.bin file to the root of the previous mapped LAN driver
12.Copy the whole folder BackupSet “aaaammdd” “xxxxxx” to this same driver
13.Try to restore the backup as usual using the advanced restore option and next the option restore backup created in another machine
14.At the next menu, point the backup folder at your LAN mapped driver and start the restore process
15.Now you shall have your backup proper restored at the right machine
16.Good Luck!

PS: you can find the sdutil file at:

What I end up getting from the CMD as Admin is this:

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\System32> H:

H:\>sdutil mediaid GlobalCatalog.wbcat H:\
== Generating MediaId.bin file ==

Loading global catalog information...OK
Verifying media data...OK

Media information:
Drive Letter: \\SUNNY-W7\Users\Restore\C\
Unique identifier: \\?\UNC\SUNNY-W7\Users\
Generating output file 'H:\Mediaid.bin'...

An error occured:
Access is denied. (0x80070005)

thoughts or suggestions?

I need to recover the whole thing approx. 2G worth...

Thanks so much,

SunnyS is offline  
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