R:\ is not accessible. Insufficient system resources exist to complete the requested service.

Using the latest ImDisk Toolkit http://reboot.pro/fi...imdisk-toolkit/, after creating a disk using the RamDisk Configuration, I am unable to format the drive or click on the drive. When I click on the drive, I get:

I'm running Windows 10 Pro (10.0.10240). I tried with imdisk 2.0.9 and 2.0.6. I have 29.0 GB of available physical memory. I'm not sure what the problem is.

When I try to format the disk, I get:

Not a common issue... You should not need to format the drive, since it's already done by RamDiskUI.exe. But you should be able to do it after the volume is created.
I would say that you have something that locks the volume once it is created. This is even more likely if you get no error while the volume creation (is this the case?).
Typically, this kind of issue can be caused by an antivirus, or by any software that monitors all the volumes.

In an elevated command prompt, try the following command:
imdisk -a -s 100M -m Z: -p "/fs:NTFS /q /y"
What is the output?

Below is the output. I've uninstalled Dell/Intel security that came with the PC, but not luck so far.

Creating device...
Created device 2: Z: -> Image in memory
Formatting disk...
The type of the file system is RAW.
The new file system is NTFS.
QuickFormatting 100.0 MB
Creating file system structures.
Format complete.
     100.0 MB total disk space.
      97.8 MB are available.
Format failed.
Notifying applications...
Done.

Edited by cmr0n, 06 April 2016 - 03:48 PM.

Thanks. It seems that the format command fails at the very end. It's like a driver puts a "hook" on the NTFS driver...
Does the format.com command work with USB sticks?
Anyhow, I can only say that it's very likely not related to ImDisk. The "Format failed." message is displayed by the format.com command.
So, unless Olof knows something about that, it will be difficult to spot the cause.