Microsoft Azure VMs now benefit from an advanced new security feature

A mysterious man holding a keyboard like a weapon
(Image credit: Shutterstock / leolintang)

Microsoft Azure customers will now be able to create Ephemeral OS disks, a type of disc created on local virtual machine (VM) storage that is not saved to remote Azure storage.

This latest feature from the cloud giant could help ensure high levels of confidentiality for data, as information stored on these types of disks will never be sent to an offsite data center.

Ephemeral disks are now currently available in all regions, and you can learn more about how to deploy them by heading here

Ephemeral OS disks

Microsoft says Ephemeral OS disks are ideal for stateless applications, where no client data generated in one session is used in the next session.

In addition, Microsoft explained these discs can be ideal for use cases that require lower latency, similar to a temporary disk, or the ability to fast reset or reimage VMs and to scale set instances to the original boot state.

Ephemeral OS disks are supported by Azure Marketplace, custom images, and Azure Compute Gallery (formerly known as Shared Image Gallery), but will not support features such as capturing VM images, disk snapshots, or OS Disk Swap.

If your looking for additional security, you’ll be pleased to know that the disks support Microsoft Azure’s Trusted Launch feature, but only in certain regions and for certain VM sizes.

Ephemeral OS disks are also free, and customers incur no storage cost for making new disks.

If you’ve still got questions about the latest feature, you head here to check out the FAQ that Microsoft has put together.

This is not the only feature that Microsoft has been rolling out for virtual machine aficionados.

Microsoft recently has updated its free Windows 11 virtual machines (VMs) offering, which is designed for developers, but could also give users the perfect way to try out its latest operating system before jumping in.

Will McCurdy has been writing about technology for over five years. He has a wide range of specialities including cybersecurity, fintech, cryptocurrencies, blockchain, cloud computing, payments, artificial intelligence, retail technology, and venture capital investment. He has previously written for AltFi, FStech, Retail Systems, and National Technology News and is an experienced podcast and webinar host, as well as an avid long-form feature writer.

Read more
Internet outage
Microsoft launches new hyper-powered disaster recovery service for Cloud PCs
Microsoft
Microsoft completes EU cloud sovereignty project, letting Europe-based cloud customers store and process data in the EU
Cloud computing graphics.
Sovereign Cloud: redefining the future of secure digital innovation
Laptop with a virtual machine logging into DeepSeek on screen on the table with vase, cup and home decor
I created a Windows 11 virtual machine to test DeepSeek safely – here's how you can do it for free
Person using a laptop in a coffeeshop
Best virtual desktop service of 2025
A phone sitting on a laptop keyboard with the Microsoft Outlook logo on the screen.
Microsoft is changing the way logins work: here’s what that means for you
Latest in Pro
Finger Presses Orange Button Domain Name Registration on Black Keyboard Background. Closeup View
I visited the world’s first registered .com domain – and you won’t believe what it’s offering today
Racks of servers inside a data center.
Modernizing data centers: an efficient path forward
Dr. Peter Zhou, President of Huawei Data Storage Product Line
Why AI commonization is so important for business intelligent transformation and what Huawei’s data storage has to offer
Wix automation
The world's leading website builder aims to save businesses time with new tool
Data Breach
Thousands of healthcare records exposed online, including private patient information
China
Juniper patches security flaws which could have let hackers take over your router
Latest in News
Google Pixel 8a in aloe green showing
Google Pixel 9a benchmark link teases the performance of the upcoming mid-ranger
Quordle on a smartphone held in a hand
Quordle hints and answers for Monday, March 17 (game #1148)
NYT Strands homescreen on a mobile phone screen, on a light blue background
NYT Strands hints and answers for Monday, March 17 (game #379)
NYT Connections homescreen on a phone, on a purple background
NYT Connections hints and answers for Monday, March 17 (game #645)
Apple iPhone 16 Pro HANDS ON
Leaked iPhone 17 dummy units may have given us our best look yet at all four models
A super close up image of the Google Gemini app in the Play Store
It's official: Google Assistant will be retired for phones this year, with Gemini taking over