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Windows 11 Core Isolation not working, states tib.sys is incompatible driver

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Windows 11 core isolation turns itself off because tib.sys is classified by this Windows security feature as an incompatible driver with this protection. I cannot find this file in File Explorer, and I do not know what I can do if I find it.

2 Users found this helpful

I have same problem with Windows 11 and True Image 2021.

tib.sys (Acronis file) is incompatible.

 

See attached file.

Attachment Size
609656-349450.png 12.02 KB

Do you Explorer setting include show hidden and system files?

Ian

This is a known issue and only resolved by Acronis in the latest build 40107 version of Acronis Cyber Protect Home Office which now offers a Custom Install option where users can now elect not to install the 'Try&Decide tool' feature (which brings the tib.sys driver to Windows).

For users of older versions of Acronis, see forum topic: Incompatible Driver(s): tib.sys? | Acronis Forum for information on how to circumvent the issue by renaming tib.sys to such as tib.~sys or by removing the associated registry entry at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\tib

Note: you may need to do a Safe mode start of Windows to action the above options.

Justin ryan wrote:

Hi,

I have version build 40107 and still experiencing this issue. Please advise?

Use the Custom Install option and elect not to install the 'Try&Decide tool' feature (which brings the tib.sys driver to Windows). 

Open the Control Panel > Programs & Features then select ACPHO and click on 'Change' to see the Custom Install option if already installed.