I'm curious if you have had luck booting Windows 10 October 2018 Update (1809) from an external SSD? Windows 10 1803 worked flawlessly. However, when attempting 1809 in October and again yesterday it fails to boot with a BSOD advising that the "Driver Unloaded Without Cancelling Pending Operations". I definitely do not think that it's your software and rather my setup (Lenovo X1 Yoga 3rd Gen) or Microsoft trying to stop third-party Windows To Go setups with the newer build. Unfortunately, I cannot get the BSOD logs as it freezes the BSOD screen and requires a restart each time. BIOS OPTIONS: Secure Boot is disabled and HDD Boot is set to LEGACY. Happy to provide more information if you find the same issues. - Todd Mitchell
- Tutorial to Fix Blue Screen Errors (dump_WppRecorder.sys) in Windows 10 To Go Using Hasleo WinToUSB
- Frequently Asked Question
- Conclusion
After creating Windows To Go using Windows 10 1809 and booting from the USB drive, the system encounters a blue screen with the following error: Stop Code: DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS What failed: dump_WppRecorder.sys
Whether Microsoft did this intentionally or it's just a bug in Windows 10 October 2018 Update (version 1809), it's a disaster for Windows To Go enthusiasts. Fortunately, the latest version of Hasleo WinToUSB has successfully resolved the issue. It can prevent dump_WppRecorder.sys Blue Screen Errors (BSOD) in Windows 10 1809 To Go. To resolve the "Driver Unloaded Without Cancelling Pending Operations" BSOD error (dump_WppRecorder.sys), you just need to download and install the latest version of Hasleo WinToUSB. Use it to install Windows 10 1809 on USB/external hard drives. Then you can get rid of Blue Screen Errors. Below we detail how to use Hasleo WinToUSB to install Windows 10 1809 on a USB drive as a Windows To Go workspace.
Tutorial to Fix Blue Screen Errors (dump_WppRecorder.sys) in Windows 10 To Go Using Hasleo WinToUSB.
Step 1. Connect the USB drive to your computer, then download, install, and run Hasleo WinToUSB. Click the "Windows To Go USB" option.
Step 2. Click "Select installation source", then click "Browse image file". Then choose the Windows 10 1809 installation ISO file from the dialog box as installation source. Alternatively, select a CD/DVD drive with Windows 10 1809 installation media.
Step 3. Hasleo WinToUSB will scan for and list the available Windows editions. Please select the edition you want to install.
Step 4. Click "Select destination drive", then choose the target drive from the pop-up list. If Hasleo WinToUSB fails to detect the drive, click the 
button to initiate drive recognition.
Step 5. Select your preferred partition scheme and installation mode. Optionally, you may specify additional drivers or enable BitLocker encryption for the Windows To Go USB drive, then click "Proceed".
* Tips:
- For detailed information about "Partition scheme", "Installation mode" and "Enable BitLocker", please refer to: How to Create Portable Windows 11/10/8/7 from ISO, WIM, ESD, SWM, VHD(X) or DBI Files?
- If you select "Keep the existing partition scheme" option, you need to manually prepare the USB drive partitions before this step. View guide: How to Manually Prepare Partitions for Windows To Go.
Step 6. After clicking "Proceed", a confirmation dialog will appear asking whether to continue formatting the drive. Click "Yes" if you accept the operation.
Step 7. After clicking "Yes", Hasleo WinToUSB initiates Windows installation on the destination drive.
Step 8. The installation will take some time. After installation, restart the computer and enter UEFI/BIOS settings to boot from the USB drive.
Step 9. A standard Windows 10 1809 installation requires completing all setup steps during the first boot. Afterward, you can install applications and copy files, etc.
Frequently Asked Questions
A: The dump_WppRecorder.sys Blue Screen error occurs due to a driver incompatibility issue in Windows 10 October 2018 Update (version 1809). The WppRecorder driver fails to properly unload during the boot process, causing the 'Driver Unloaded Without Cancelling Pending Operations' error. This is a known issue that affects Windows To Go installations created with certain methods.
A: Download and install the latest version of Hasleo WinToUSB, then recreate your Windows 10 1809 To Go USB drive using the updated software. The latest WinToUSB version includes patches that prevent the dump_WppRecorder.sys Blue Screen error during boot.
A: Unfortunately, fixing the dump_WppRecorder.sys error typically requires recreating the Windows To Go drive. The issue originates from boot components that are written during the initial creation process. Using the latest WinToUSB version ensures proper boot components are installed from the start.
A: After applying the WinToUSB fix, Windows 10 1809 To Go should boot successfully on most computers. However, results may vary depending on hardware configurations. Some older systems with legacy BIOS settings or specific firmware versions may still encounter issues. For maximum compatibility, consider using Windows 10 1903 or later versions which have better hardware support.
A: Windows 10 1809 reached end of support in November 2020, meaning no security updates are provided. For better security and hardware compatibility, upgrade to a newer Windows 10 version like 22H2, or use Windows 11. Hasleo WinToUSB supports all Windows 10 and 11 editions for creating portable Windows environments.
Conclusion
As a professional Windows To Go creator, Hasleo WinToUSB can fix "Driver Unloaded Without Cancelling Pending Operations" Blue Screen Errors (dump_WppRecorder.sys) in Windows 10 1809 To Go with just a few steps. Additionally, Hasleo WinToUSB can clone an existing Windows 10 1809 installation on a USB drive as a Windows To Go workspace.
