VM's Temp Storage and CDROM drive letter change and the recommendation

Question

What is the recommendation to use Temp Storage or not to use?

If we change the drive letter for Temp Storage default D: drive to any other drive letter
and
CDROM default E: drive to any other drive letter. Is there any impact if we change?

Answer 1

Its purpose is for performance optimisation, it is SSD storage on the same physical host as the virtual machine so it can be used to optimise performance for non-persistent storage items like the page file. For Windows VMs the page file is placed there by default.

https://learn.microsoft.com/en-us/azure/virtual-machines/managed-disks-overview#temporary-disk

No issues with changing this drive letter - https://learn.microsoft.com/en-us/azure/virtual-machines/windows/change-drive-letter