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Question
Saturday, July 4, 2020 1:00 AM
Hi all,
I recently found out that my fairly fresh Win10 installation cannot mount any ISO files (which are totally fine because other tools can open and extract them) whatsoever. When I try to do this in Windows Explorer or in the PowerShell, for several minutes, nothing at all seems to happen before I get an error message. The explorer just says there was a problem mounting the file; PowerShell writes the following:
Mount-DiskImage D:\tmp\90f226a1-3cad-4bd7-a047-fc0609afcbab.iso
Mount-DiskImage : The semaphore timeout period has expired.
At line:1 char:1
- Mount-DiskImage D:\tmp\90f226a1-3cad-4bd7-a047-fc0609afcbab.iso
-
+ CategoryInfo : NotSpecified: (MSFT_DiskImage ...torageType = 1):ROOT/Microsoft/.../MSFT_DiskImage) [Mou
nt-DiskImage], CimException
+ FullyQualifiedErrorId : HRESULT 0x80070079,Mount-DiskImage
The OS in question is a Win10 pro (1909, build 18363.900, latest patches, 2004 is not available for my machine yet); as far as I know, this hasn't worked since I freshly installed the PC back in April. I disabled the anti-virus, have checked that ISO files are still associated with windows and not some third-party tool, checked that the 2TB NTFS SSD is okay, copied the ISO files to different locations, but nothing seems to work. How can I get my Win10 installation to open ISO files?
Any new/further ideas are appreciated. I've seen posts claiming to solve this error for older Win10 versions, but not for 1909, and none of the "solutions" I've found so far work for me.
All replies (7)
Monday, July 6, 2020 3:19 AM
Hi Blavov,
It seems that many users have encountered this problem. Have you updated your pc? Please provide the screenshot of the error about windows explorer and powershell.
You can move the ISO file to other partition. Here is an identical case for reference.
Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.
Best regards,
Sylvia
Please remember to mark the replies as answers if they help. "Windows 10 Installation, Setup, and Deployment" forum will be migrating to a new home on Microsoft Q&A (Preview)! We invite you to post new questions in the "Windows 10 Installation, Setup, and Deployment" forum’s new home on Microsoft Q&A (Preview)! For more information, please refer to the sticky post.
Monday, July 6, 2020 7:53 AM
As I already mentioned, moving the files to a different location did not help; I tried an NTFS SSD, and NTFS hard drive and an external NTFS USB drive. I also mentioned I was on Win10 pro 1909 with all the patches Microsoft provided through windows update. I can make screenshots of the two errors later today, but they don't contain anything else but what was already cited above, so I really don't see the point.
Cheers, Pit.
Monday, July 6, 2020 8:56 AM
Hi Balvov,
I'm sorry I didn't read your question clearly.
You can try to copy the file and then mount the copy, because the original ISO file may be marked as sparse. This flag gets removed when the file is copied.
You can check if this flag is set with the command
fsutil sparse queryflag <PathToYourISO>
Ref(Note: This is a third-party link and we do not have any guarantees on this website. And Microsoft does not make any guarantees about the content.)
Best regards,
Sylvia
Please remember to mark the replies as answers if they help. "Windows 10 Installation, Setup, and Deployment" forum will be migrating to a new home on Microsoft Q&A (Preview)! We invite you to post new questions in the "Windows 10 Installation, Setup, and Deployment" forum’s new home on Microsoft Q&A (Preview)! For more information, please refer to the sticky post.
Monday, July 6, 2020 6:32 PM
I still don't think you understand me - I mentioned twice that I tried different file locations - that means I copied the files to those very locations.
In any case, none of the files I tried are marked as sparse.
The reference you added also just tells me to do the very things I already did before I posted the original article here.
Cheers, Pit.
Tuesday, July 7, 2020 10:01 AM
Try to in-place upgrade or refer the steps mentioned in the article How to perform an In-place Upgrade with Windows 10 Step-by-Step Guide by PaulSey to perform the repair installation.
Note: This is a third-party link and we do not have any guarantees on this website. And Microsoft does not make any guarantees about the content.
Best regards,
Please remember to mark the replies as answers if they help. "Windows 10 Installation, Setup, and Deployment" forum will be migrating to a new home on Microsoft Q&A (Preview)! We invite you to post new questions in the "Windows 10 Installation, Setup, and Deployment" forum’s new home on Microsoft Q&A (Preview)! For more information, please refer to the sticky post.
Tuesday, July 7, 2020 10:42 AM
I've run chkdsk again (I mentioned I already did that) to no avail on one of the several drives from which the ISO files won't mount.
I'm not a Win10 business customer, so I can't open a ticket - at least not without paying a ridiculous amount of money. And all that for an error from a basic operating system function - as I mentioned, I cannot mount any ISO files whatsoever, regardless of the source. In addition to those I originally tried to mount, I downloaded linux OS images and anti-virus rescue disks, all to no avail.
Cheers, Pit.
Tuesday, July 7, 2020 2:32 PM
I had this problem on one Windows 10 installation several years ago. The easy solution was to install a freeware disk mount program (I think I used ImDisk) which worked perfectly. After a feature upgrade I noticed that Windows could again mount iso files and abandoned the free program. Not worth the effort of trying to fix Windows.