Error when trying to create a virtual machine

Question

I have a trial subscription for Azure. When I try to create a virtual machine, I get an error stating that 'This size is currently unavailable in eastus for this subscription: NotAvailableForSubscription.' No matter what location I choose I get the same error. I'm trying to spin up the smallest and cheapest VM, which is the B1s. I registered Microsoft compute as well.

Answer 1

@Khirhy B

This error isn’t caused by anything you’ve configured incorrectly.

With Azure Free Trial subscriptions, Microsoft often sets the VM (compute) core quota to zero in many regions due to capacity and abuse‑prevention controls. When the quota is zero, all VM sizes including the smallest ones appear as NotAvailableForSubscription across regions, even though the VM sizes themselves exist and the Microsoft.Compute provider is registered.

Additionally, the Standard_B1s (B‑series v1) VM is being restricted and phased out in many regions, which further limits its availability for new and trial subscriptions.

Microsoft now recommends using B‑series v2 SKUs instead, such as:

1. B2ATS for Windows
2. B2ATS or B2PTS for Linux

These are included in the Azure Free Account offer (up to 750 hours per month when used with a P6 (64‑GiB) managed disk). However, if the free trial subscription has zero compute quota, VM creation will still fail even with these newer SKUs. Unfortunately, free trial subscriptions cannot request a quota increase. The only reliable resolution is to upgrade the subscription to Pay‑As‑You‑Go, which assigns standard VM core quotas and allows VM creation immediately.

This is a subscription limitation, not a regional outage or a deployment issue.

Resolve errors for SKU not available - https://docs.azure.cn/en-us/azure-resource-manager/troubleshooting/error-sku-not-available?tabs=azure-cli

If you have any further queries, let me know. If the information is helpful, please click on Upvote and Accept Answer on it.

Answer 2

Hi @Khirhy B ,

As the B series (version 1/v1) is being retired in a lot of Azure regions the B2ATS might be the preferred VM SKU.

More details: https://learn.microsoft.com/en-us/azure/virtual-machines/sizes/general-purpose/bsv2-series?tabs=sizebasic#sizes-in-series

Please check the pricing and if these VM SKUs (free) are available for you:

For Windows VM: B2ATS

For Linux VM: B2ATS, and B2PTS

All of these are free of charge (750 hours per month) if used with a P6 (64GiB) managed disk.

Source: https://marketplace.microsoft.com/en-us/product/azure-services/microsoft.freeaccountvirtualmachine?tab=overview

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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards

Andreas Baumgarten

Answer 3

The error message "This size is currently unavailable in eastus for this subscription: NotAvailableForSubscription" indicates that the B1s virtual machine size is not available for your trial subscription in the specified region. This can happen due to various reasons, including quota limitations or availability issues in that region.

Here are a few steps you can take to resolve this issue:

1. Try a Different Region: Sometimes, certain VM sizes are not available in specific regions. You can check if the B1s size is available in other regions by using the Azure portal or CLI commands.
2. Select a Different VM Size: If the B1s size is not available, consider selecting another size that is available in your desired region. You can view available sizes in the Azure portal by starting the VM creation process and checking the size options.
3. Check Quotas: Ensure that you have sufficient quota for the VM size you are trying to deploy. You can check your subscription's quota limits in the Azure portal.
4. Contact Support: If you continue to experience issues, you might want to reach out to Azure support for assistance, especially since you are on a trial subscription.

These steps should help you troubleshoot the issue and successfully create a virtual machine.

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References:

• Common issues: Unavailable virtual machine SKU
• Resolve errors for SKU not available