BrusbSib.sys incompatible driver

See here for my solution to the issue. There is also a registry entry for brusbsib.sys that may remain and gives the error message you describe. The solution is in my post in another thread (link above).

Good luck

this doe snot work for me, still incompatible driver is there, an di can not turn the memory integrity on

this seems the ULTIMATE SOLUTION of one is reinstalling Brother software WITHOUT omitting PC-Fax option. I wonder if one can use it. Brother tellings is a software-problem. block core-protection.
Hello, This problem is due to Drivers left behind while uninstalling the Utility Software. I am able to resolve this problem with the following steps:

1. Step 1: Press Windows + X
2. Step 2: Select "Terminal Admin" from the Drop Down List
3. Step 3: If Prompted for User Account Control, Click on "Yes"
4. Step 4: On the Command Prompt/Terminal, type the Command "pnputil /enum-drivers and hit "Enter"
5. Step 5: You will see a Drop Down List of all the Drivers Installed on your PC/Laptop
6. Step 6: Note Down the Publisher's Name of all the Drivers you are facing Problems with. In my case, they were oem46.inf; oem22.inf; oem135.inf; oem31.inf; oem79.inf; oem103.inf; oem134.inf; and oem67.inf
7. Step 7: Now on the Command Prompt/Terminal, type, "pnputil /delete-driver <Publisher's Name (i.e. like oem46.inf)> and hit "Enter"
8. Step 8: You shall get a message that "Driver Package Deleted Successfully"
9. Step 9: Repeat the Step 7 for all other Defective Drivers say oem22.inf etc. , one-by-one for all the Drivers noted Down in Step 5
10. Step 10: Now, Turn "ON" the "Memory Integrity"
11. Step 11: Reboot the System

Hope this shall help the community. I found this solution on the Net and it worked for me.

    This solved the issue for me. 

I had previously removed the Brother driver of my printer from Windows and also using the Brother un-install tool explained elsewhere but the following operation solved for me.

Open file explorer search for file : BrUsbSib.sys

I found it in a folder and noticed that in the same folder

(or one level above, I don't remember, now it's gone ...)

there was a file with extension .inf which seemed to give information about the whole group of files installed in the same folder : brpoc12a.inf

This file seemed to be a text file giving information about a driver installation (that included the faulty BrUsbSib.sys file)

I guessed that this brpoc12a.inf name could help me find the faulty driver in the Device Manager because I had noted that in Device Manager appeared names that had the . inf extension,

and yes it did.

I opened the Device manager as explained elsewhere and selected

Menu/View/Devices by driver

then I located the name : brpoc12a.inf

It was not in the driver name but in the parentheses of the driver name like : (brpoc12a.inf)

Then I right clicked the driver name and choose un-install. Then I restarted the computer.

Then I went to Windows settings / Device Security / Core Isolation, and enabled "Memory Integrity"

It worked fine.

Then I downloaded from Brother site the Package for installing my Brother Printer,

and installed the software.

All work fine now

one must click on the arrow to see one or multiple oem.inf files!!!

file names may be different the oem ...... inf ones.

strange thought i explained it clearly and ms was thankful.
got the tip from brother but they omitted the last step.

went through all proposals which i could see online some were obsolete or nothing found.

if i didnt write here it muss be elsewher on this forum. cannot believe that.
here is the problem:
Brother pc-fax-option must be omitted during reinstallation. only use brother deinstallator.
the naming of this oem.inf file will be augmented after every trial. so only the last one is counting.
pls go to sysopt-forum where i listed the problem in details.no problem to copy the final solution here. or i can do when ordered to do.
europanorama=ME
Brother printer-driver BrUsbSib.sys(oem94.inf) blocking Core Protection-win10s. (sysopt.com)

I went to c:\windows\system32 and did a search for BrUsbSib.sys and got no match. Is it in a folder within c:\windows\system32 ?