That's why many machines can't upload Windows 11 to 24H2. 🚨

Microsoft recently announced that many users were previously unable to update Windows 11 to version 24H2 because it has been temporarily blocked since April 2025 due to driver compatibility problems, causing some devices to freeze or blackscreen during use.

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The culprit of this problem is a driver file named sprotect.sys from SenseShield used for data encryption protection systems. Microsoft has stated that this problem has now been fixed, and has successfully unblocked it on October 15, 2025.

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But the matter is not over easily, because there are many programs that use SenseShield's technology behind it. Microsoft cannot determine which program caused it. It recommends that users update all local apps to the latest version to ensure that none of them use the old driver that caused the problem and can update Windows 11 24H2 as usual.

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Microsoft also warned that after unblocking, users may have to wait about 48 hours for the update option to appear on the system, so if they don't see the update, don't panic. Just wait a little longer to get the update.

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For SenseShield, formerly known as Senselock, a company that develops software protection and data security technology in an enterprise. There is a tool called VirBox used in the security systems of many programs, which was the source of this problem at first.

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Source: windowsforum

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