• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines

Featured blog article:

Check out our WINDOWS 11 Support Center info about: OPTIMIZATION, KNOWN ISSUES, FAQs, VIDEOS AND MORE.
Locked

‎02-20-2026 12:24 PM

HP Recommended

drive incompatible with setting memory integrity - can it be deleted?

 

1 REPLY 1

‎02-22-2026 09:16 AM

HP Recommended

Hi @JALeo5344 

 

Welcome to the HP Support Community! We're here to help you get back up and running.

 

Got it — you’re seeing u2ser.sys flagged as incompatible with Memory Integrity (Core Isolation), and you’re wondering if it can simply be deleted. 

 

Before we jump into solutions, let’s carefully isolate the situation so we know exactly what we’re dealing with.

 

Here are the key details I’d like to clarify from you:

 

1. System & Environment

  • Which Windows version/build are you running (e.g., Windows 10 22H2, Windows 11 23H2)?
  • Is this on an HP system (laptop/desktop), or another brand?
  • Do you have Memory Integrity enabled under Windows Security → Device Security → Core Isolation?

 

2. Driver Context

  • Did you notice u2ser.sys listed under Incompatible drivers in the Memory Integrity settings?
  • Do you recall if this driver is tied to a specific device (USB-to-serial adapter, printer, scanner, etc.)?
  • Was this driver installed manually (from a vendor CD/website) or automatically via Windows Update?

 

3. Symptoms

  • Are you experiencing system instability (crashes, BSODs, freezes), or is the issue only that Memory Integrity refuses to turn on?
  • Do you rely on the device that uses this driver, or is it unused/legacy hardware?

 

4. Goal

  • Is your main priority to enable Memory Integrity for security, or to remove the driver/device entirely if it’s not needed?

 

The reason I’m probing is that u2ser.sys is often linked to USB-to-serial controller drivers (commonly used for older peripherals). Deleting it outright could break functionality for connected hardware, but if it’s unused, removal might be safe. The right path depends on whether you still need the device and whether updated drivers exist.

 

 

We're looking forward to helping you get back up and running! 

 

Regards, 

Hawks_Eye

 

Note: Do not share any of your personal information in public, such as serial number, phone number, email ID, etc.

I'm an HP Employee.


If this reply helped resolve your issue, please select the Accept as Solution as it helps others in the community quickly find the answer they’re looking for.


And if you found this reply helpful, clicking Yes below is a great way to let us know we’re providing the support you need, as it encourages us to keep improving and sharing helpful guidance.

Was this reply helpful? Yes No
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.
-->