New
#370
Wynona that error could for instance occur when you try to use an ISO which is at the moment mounted on your system as a virtual DVD drive.
Could it be that you test the ISO's functionality first by mounting it, forget to eject / unmount it and try to use Rufus?
EDIT:
Checking Wynona's post again I noticed how wrong I was. That error message is not complaining about the ISO media being used but it tells that Rufus cannot use the USB media.
Realizing that I started to play with Rufus and now I have the same issue! I have now tested three different USB Flash drives and I am getting the same error with each of them:The Rufus log file tells quite clearly that the problem is the access to the USB drive is denied. Have to do some research now to find out why.
Last edited by Kari; 02 Oct 2015 at 04:43.
Wanting to test that the USB drives were not damaged causing Rufus not to get access to them, I downloaded and installed the Windows 7 USB Tool (Windows 7 USB/DVD Download Tool - Windows 7 Help Forums). With that tool I successfully created bootable USB install media using the same USB drives that Rufus can't use.
Trying Rufus again, it shows the same error:
I don't know what is causing this, why Rufus can't get access to the USB drive. The workaround, only working for those installing Windows on legacy BIOS systems is to use the above mentioned Windows 7 USB Tool (it does not create UEFI install media).Rufus version: 2.4.757Windows version: Windows 10 64-bit
Syslinux versions: 4.07/2013-07-25, 6.03/2014-10-06
Grub versions: 0.4.6a, 2.02~beta2
Locale ID: 0x0809
Found USB 3.0 device 'WD My Book 1130 USB Device' (1058:1130)
Device eliminated because it was detected as an USB Hard Drive (score 23 > 0)
If this device is not an USB Hard Drive, please e-mail the author of this application
NOTE: You can enable the listing of USB Hard Drives in 'Advanced Options' (after clicking the white triangle)
Found USB 2.0 device 'Kingston DT R500 USB Device' (0951:1654)
1 device found
Disk type: Removable, Sector Size: 512 bytes
Cylinders: 1946, TracksPerCylinder: 255, SectorsPerTrack: 63
Partition type: GPT, NB Partitions: 1
Disk GUID: {47D90F67-7DF2-4C5D-BCAC-C632921B3545}
Max parts: 128, Start Offset: 17408, Usable = 16013818368 bytes
Partition 1:
Type: {EBD0A0A2-B9E5-4433-87C0-68B6B72699C7}
Name: 'Microsoft Basic Data'
ID: {4A2432D8-31AD-4748-B0C4-24EF7388D094}
Size: 14.9 GB (16012787200 bytes)
Start Sector: 2048, Attributes: 0x0000000000000000
Scanning image...
ISO analysis:
Image is an UDF image
Disk image analysis:
Image does not have an x86 Master Boot Record
ISO label: 'J_CEDNA_X64FRE_EN-US_DV5'
Size: 3786784768 bytes
Has a >64 chars filename: No
Has Symlinks: No
Has a >4GB file: No
Uses Bootmgr: Yes
Uses EFI: Yes
Uses Grub 2: No
Uses Grub4DOS: No
Uses isolinux: No
Uses KolibriOS: No
Uses ReactOS: No
Uses WinPE: No
Uses Install.wim: Yes (version 0.13.1)
Using image: en_windows_10_education_n_x64_dvd_6847236.iso
Format operation started
Requesting disk access...
Opened drive \\.\PHYSICALDRIVE3 for write access
Could not get exclusive access to device \\.\PHYSICALDRIVE3: [0x00000005] Access is denied.
I've never had a problem with the Windows 7 USB Tool, making bootable USB sticks or DVD's.
Yeppers, but not in Build 10547!
Sometime after I closed things down in here, I thought about dropping back to RTM Build 10240. So, this morning, I booted to it and just finished creating the bootable USB stick.
So, at this point, it's looking seriously like Build 10547 could be the culprit; however, I haven't seen any other complaints about the inability to create the bootable media. Sigh . . .
I see Kari's posted also, so I'll go read what he's found.
Exactly, Kari. I thought it was talking about the ISO I created, but then I finally figured that one out. Still no joy after many other USB sticks.
Could it just be an incompatibility between Rufus 2.4 and Build 10547? Reasoning is that each and every USB stick I tried all work without issue; I can add files, delete files, open files, close files, etc.Realizing that I started to play with Rufus and now I have the same issue! I have now tested three different USB Flash drives and I am getting the same error with each of them:The Rufus log file tells quite clearly that the problem is the access to the USB drive is denied. Have to do some research now to find out why.
Great minds and all that, Kari . . . :)
I dropped back to my RTM Build 10240 and Rufus 2.4 worked without a hitch and I now have my bootable USB stick ready to clean install . . .
Again, just for general information and to get everything I've tried in one place:
1. Failure, as shown in my original screenshot.
2. Tried second, third and fourth USB sticks: Failure
3. First tries were on Desktop computer; subsequent tries were on Lappy 7: Failure
4. Dropped back to Rufus 2.2: Failure
A . n . d , drumroll please
5. Booted into RTM Build 10240 and Rufus didn't hesitate: SUCCESS!
Edit: Oh yeah, I also tried recreating Install.ESD to ISO: Failure