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Windows 11 Home with Acronis True Image 2018

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Michael, welcome to these public User Forums.

Yes, ATI 2018 will work on Windows 11 ... but ... if you have Windows Core Isolation / Memory Integrity enabled on Windows 11, then you will need to disable this first or else it will not install because of the Acronis Try & Decide tib.sys kernel driver that gets installed automatically.

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.

Once tib.sys has been renamed etc, then Core Isolation can be re-enabled again.