How do I enable B1 series on my Azure Basic (pay as you go) Plan

David Cletus 20 Reputation points
2026-06-16T20:07:59.91+00:00

please am trying to enable the B1 series for my size on azure vm and i can't seem to select b1 series, kindly help or assist on how I can enable B1 Series

Thank you in Advance

Windows for business | Windows Client for IT Pros | User experience | Configure Azure Virtual Desktop
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  1. AI answer

    2026-06-16T20:08:19.1033333+00:00

    B1-series (burstable) VMs are part of the Azure B-family general purpose sizes. If B1 sizes (such as Standard_B1s/B1ms) are not selectable in the portal for a Pay-As-You-Go subscription, the usual causes are:

    1. The Bv1/B-series in that region are treated as previous-generation or restricted
    2. The series is not enabled for that subscription/region/zone

    To proceed:

    1. Confirm that B-series is available
      • Bv1 sizes are a previous-generation series. For many regions, newer B-family sizes are recommended instead. See the B-family overview to confirm which B-series are available and supported.
      • If Bv1/B1 sizes are not listed for the region, select a newer B-family size instead.
    2. Request access if the series is restricted or zonal-only
      • If the B-series appears as restricted or only in specific availability zones, submit a zonal enablement request so the series can be used in the desired zone:
        1. In the Azure portal, go to Help + support → Create a support request.
        2. In Describe your issue, type quotas and select Service and Subscription Limits (quotas).
        3. Set Issue type to Service and Subscription Limits (quotas), choose the correct Subscription, and set Quota type to Compute-VM (cores-vCPUs) subscription limit increases.
        4. Under Problem details, select Enter details.
        5. Set Deployment model to Resource Manager.
        6. Under Choose request types, select Zone access.
        7. In Request details, choose the Locations (regions) and the requested logical zone(s) where B-series should be enabled.
        8. Select the B-series VM family you want (for example, the B-series that includes B1 sizes).
        9. Save, then continue to Review and create and submit the request.
      • After approval, B-series should become selectable in that region/zone for the subscription.
    3. If still unavailable
      • If, after enablement, B1 sizes still do not appear, choose another B-family size that is listed for that region or move the VM deployment to a region where B1/Bv1 is available.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. HLBui 12,060 Reputation points Independent Advisor
    2026-06-16T21:42:03.74+00:00

    Hi David Cletus

    You’re not doing anything wrong i think you can’t pick the B1 series is usually because it’s either not available in your region/zone or the subscription quota doesn’t allow that SKU. Azure doesn’t show sizes that aren’t supported in the selected region, so it’s not a bug, just a limitation

    1. Try deploying in a different region (e.g., East US, West Europe) where B1 is still supported.
    2. Check your subscription quotas under Help + Support → New Support Request → Quotas in the Azure portal.
    3. If you’re flexible, consider using Basv2 series they’re the newer burstable VMs and usually cheaper with better performance.
    4. Use the Azure CLI command az vm list-sizes --location <region> to confirm which sizes are available in your target region.

    If you run: az vm list-sizes --location "East US" --output table

    You’ll see whether Standard_B1s or Standard_B1ms are listed. If not, you’ll need to pick Basv2 equivalents.

    Try the steps above and you should be able to move forward. If this clears things up, please hit “Accept Answer” so I know it helped you out.

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