Great question. If you want to determine whether or not an app relies on CHPE you need to figure out if it is a 32-bit x86 app vs. other non CHPE related x64 or Arm. Perhaps the easiest option to consider is try to obtain the latest x64 or Arm64 version if available.

If you are unsure about an existing app, you can check to see if it is x86 (32-bit) by using Task Manager. Launch Task Manager and select the Details tab view and observe the Architecture column with values like Arm64 (ARM), x64 (64-bit) or x86 (32-bit). If the application, you are investigating is x86, its 32-bit and could be using CHPE. Another way to look at it, if its Arm64 or x64 its not using CHPE. You must still disable CHPE to receive hotpatch updates, however you should not expect to see any major performance or compatibility issues related to disabling CHPE for the x64 and Arm native (e.g. non x86 32-bit) applications being examined. 

If you're wondering what is CHPE? Windows OS CHPE (Compiled Hybrid Portable Executable) is a technology introduced to improve compatibility and performance for 32-bit applications on 64-bit Arm CPU based Windows systems. (If your PC uses an AMD or Intel CPU then the CHPE doesn't apply you.) Enabling or disabling CHPE flag discussed in the video doesn't determine that your application(s) will or won't work. As mentioned, CHPE is designed to improve compatibility and performance. We recommend that you test the application with the CHPE disabled before widely deploying hotpatch on Arm64 PCs to ensure that there are no unexpected compatibility issues with any of the x86 app(s) you or your users rely on.

Hi Jay Michaud. Yes, you can request the full LCU by clearing the CHPE disable flag (HotPatchRestrictions=0) and then restart the device. Keep in mind, though, that the device will stay off of Hotpatch until the next baseline. So if you clear the flag in May (for example) it will have to wait till July to be "re-enrolled" into Hotpatch.

Here's a link for reference: Hotpatch updates | Microsoft Learn

No, hotpatching for Windows 11 24H2 is only available for Windows Enterprise E3 or E5 (e.g. Microsoft 365 A3/A5 or Microsoft 365 F3); or a Windows 365 Enterprise subscription.
Hotpatch for client comes to Windows 11 - Windows IT Pro Blog

Here you go: Hotpatch updates | Microsoft Learn

Specifically, step 7: 

Under the Settings section, set "When available, apply without restarting the device ("Hotpatch") to Allow. Then, select Next.

Hotpatching is currently designed for Windows Updates and applies to the Windows OS, Microsoft Edge is not included in this mechanism.

For Edge, security updates are applied via its own update channel, and some critical fixes may require to restart Edge to fully take effect.

I agree with my other colleagues' responses below. I'd like to add a few additional comments.

If we determine there is an issue in a hotpatch update that impacts our users we could potentially deploy another hotpatch update that fixes the issue and potentially will not require a restart. This also points out we could deploy more than one hotpatch update per month if necessary.

Here you go, Nishant. Hotpatch updates | Microsoft Learn.

Specifically: Automatic rollback of a Hotpatch update isn’t supported but you can uninstall them. If you experience an unexpected issue with hotpatch updates, you can investigate by uninstalling the hotpatch update and installing the latest standard cumulative update (LCU) and restart. Uninstalling a hotpatch update is quick, however, it does require a device restart.

We understand that reliability is a top concern when applying updates. Hotpatching is designed to minimize disruptions by applying security updates without requiring a reboot. However, if an issue arises, there are multiple safeguards in place:

1. Rollback via Uninstall – Hotpatches can be uninstalled individually if needed. After rollback, users can install the standard cumulative update and reboot the device to ensure they remain secure.
2. Safe Deployment Practices – Microsoft thoroughly tests hotpatches before release, and customers can validate them in a test environment before broad deployment.
3. If you encounter an issue, Microsoft Support is available to assist.

Thanks for your feedback! We've shared this with the Technical Takeoff team. 

Hello Vijay_kumar89 , 

Great observation, the minor version of hotpatch will be lower that the regular minor version of a cumulative update for the same month. This allows for installation of a cumulative update on top a hotpatch update if you so choose.  Despite ethe version difference, both updates present the same security coverage. 

Installing the cumulative update during a hotpatch month will take the device off the hotpatch train. The device will then receive a hotpatch post a planned baseline month. 

Regarding the non-security update, these are not offered if the machine is opted into hotpatch and is on the hotpatch train.