Share via

Solution for Windows Update's handling of extremely large update packages

daniel2 0 Reputation points
2025-03-05T07:21:22.5533333+00:00

I want to submit a PNP driver to Windows Update, but the size limit for CAB files is only 2G. What should I do if the size exceeds 2G?

Windows Hardware Performance
Windows Hardware Performance
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.Hardware Performance: Delivering / providing hardware or hardware systems or adjusting / adapting hardware or hardware systems.
1,674 questions
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Molly Lu-MSFT 1,336 Reputation points Microsoft External Staff
    2025-03-05T07:55:02.33+00:00

    Hello,

    Thank you for posting in Microsoft Q&A.

    Based on the description, I understand your question is related to update.

    Divide the driver package into smaller components, each under 2GB, and submit them separately. This approach ensures that each CAB file adheres to the size limit.

    Review and optimize the driver files to reduce their size. This may involve removing unnecessary files or compressing existing files more efficiently.

    If your driver package consists of multiple files, you can create multiple CAB files, each containing a portion of the driver files, ensuring that none of the CAB files exceed the 2GB limit.

    Have a nice day.

    Best Regards,

    Molly

    ============================================

    If the Answer is helpful, please click "Accept Answer" and upvote it

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.