Issue: [Fix] Memory integrity not running due to STTub30.sys (STmicroelectronics) incompatible driver
Hello, I have received a message that Core Isolation has an incompatible driver, STTub30.sys (STmicroelectronics), due to which Memory Integrity was disabled. I have installed the latest Windows updates, but I still receive the message. Any ideas on how to fix this? Thanks in advance.
Core Isolation and Memory Integrity are relatively new iterations of Microsoft Defender, the built-in antivirus that can be found in all recent Windows versions. Unfortunately, some users found that they couldn't turn on Memory Integrity because Windows found an incompatible driver, STTub30.sys (STmicroelectronics) on their devices. This can be a huge problem, as Defender is not running at its full capacity.
Since malware has been evolving rapidly in the past decade or so, threats like ransomware are running rampant, and hundreds of users get infected every day. While some users prefer to use third-party security software, those who opt for Windows' built-in security tool are also protected very well, as long as it is running properly. That being said, when Memory Integrity is turned off, it is no longer the case, so it becomes vital to fix STTub30.sys (STmicroelectronics) incompatible driver issues on the system.
Some users reported the prompt telling that Memory Integrity was turned off seemingly out of the blue, while others claimed issues started after updating or reinstalling drivers, updating Windows, or performing other tasks. Other people claimed that several other issues, such as Firewall not working due to STTub30.sys, also occurred.
The reason for Core isolation and Memory Integrity to be turned off are the incompatible or corrupt driver. In this case, STmicroelectronics is a Switzerland-based semiconductor developer and producer. The component in question is a Kernel device driver with the product name Generic STM USB Driver.
Before you proceed with the solutions below, make sure that your Windows is running on the latest version and is up-to-date. Also, if your system files are corrupted, it may also cause the device to malfunction, so we recommend first running a scan with a PC repair tool ReimageMac Washing Machine X9.
Fix 1. Get rid of the driver using the elevated Command Prompt
Some users managed to fix the Core Isolation issue by removing the driver altogether. To do so, proceed with the following steps:
- Type in cmd in Windows search
- Right-click on Command Prompt and select Run as administrator
- When User Account Control pop-up shows up, click Yes
- Now, copy and paste the following command link, pressing Enter afterward:
dism /online /get-drivers /format:table
- Your next task is to find the line containing the STmicroelectronics under Provider Name, then take note of the Published name
- Next, type in the following command, replacing “Published name” with the driver name, for example:
pnputil /delete-driver oem33.inf /uninstall /force
- Press Enter
- Restart your system.
Fix 2. Replace the STTub30.sys file
One of the ways users managed to fix the problem was by replacing the file that was causing the problem – STTub30.sys. To get the newest version, however, you'll have to download it from the GitHub platform, which is by no means official (the developer does not have this version of the driver [published on its official website, although this may change in the future). Nonetheless, Virus Total checks confirm the file is safe to use.
- Go to the C:\Windows\System32\drivers\ location and find STTub30.sys file. Copy it to another location for a backup (you can use USB or cloud services too)
- Download the newest file version from the GitHub site
- Now, go back to C:\Windows\System32\drivers\ and copy the new file you downloaded into this location
- You will be asked to grand Administrator permissions – do so
- Reboot your system
- After a restart, go to Windows Security > Device Security > Core Isolation and enable Memory integrity.
Repair your Errors automatically
ugetfix.com team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:
Protect your online privacy with a VPN client
A VPN is crucial when it comes to user privacy. Online trackers such as cookies can not only be used by social media platforms and other websites but also your Internet Service Provider and the government. Even if you apply the most secure settings via your web browser, you can still be tracked via apps that are connected to the internet. Besides, privacy-focused browsers like Tor is are not an optimal choice due to diminished connection speeds. The best solution for your ultimate privacy is Private Internet Access – be anonymous and secure online.
Data recovery tools can prevent permanent file loss
Data recovery software is one of the options that could help you recover your files. Once you delete a file, it does not vanish into thin air – it remains on your system as long as no new data is written on top of it. Data Recovery Pro is recovery software that searchers for working copies of deleted files within your hard drive. By using the tool, you can prevent loss of valuable documents, school work, personal pictures, and other crucial files.