The error code 0x80244002, also known as WU_E_PT_SOAPCLIENT_OUTOFMEMORY, indicates that the Windows Update client ran out of memory while processing a SOAP request. This can prevent Windows 10 from downloading and installing updates correctly. Here’s a step-by-step guide on how to resolve this issue.

Step 1: Run Windows Update Troubleshooter

1. Open Settings: Press Win + I to open the Settings app.
2. Navigate to Update & Security: Click on "Update & Security".
3. Run Troubleshooter: Select "Troubleshoot" from the left-hand menu, then click on "Windows Update" and select "Run the troubleshooter".
4. Follow Instructions: Follow the on-screen instructions to complete the troubleshooting process.

Step 2: Reset Windows Update Components

1. Open Command Prompt as Administrator: Press Win + X and select "Command Prompt (Admin)" or "Windows PowerShell (Admin)".
2. Stop Windows Update Services: Execute the following commands to stop the Windows Update services:

   net stop wuauserv
   net stop cryptSvc
   net stop bits
   net stop msiserver

3. Rename SoftwareDistribution and Catroot2 Folders: Execute the following commands to rename the SoftwareDistribution and Catroot2 folders, which store temporary Windows Update files:

   ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
   ren C:\Windows\System32\catroot2 Catroot2.old

4. Restart Windows Update Services: Execute the following commands to restart the Windows Update services:

   net start wuauserv
   net start cryptSvc
   net start bits
   net start msiserver

Step 3: Increase Virtual Memory

1. Open System Properties: Press Win + R, type sysdm.cpl, and press Enter.
2. Navigate to Advanced Settings: Go to the "Advanced" tab and click on "Settings" under the Performance section.
3. Adjust Virtual Memory: In the Performance Options window, go to the "Advanced" tab and click on "Change" under the Virtual Memory section.
4. Set Custom Size: Uncheck "Automatically manage paging file size for all drives", select the drive where Windows is installed, and choose "Custom size". Set the initial size (MB) and maximum size (MB) to recommended values or higher.
5. Apply Changes: Click "Set", then "OK", and restart your computer.

Step 4: Check for Malware

1. Run Windows Defender: Open Windows Security by clicking on the shield icon in the taskbar or searching for it in the Start menu.
2. Full Scan: Go to "Virus & threat protection", click on "Scan options", and select "Full scan". Click "Scan now" to begin the process.

Step 5: Perform a System File Check

1. Open Command Prompt as Administrator: Press Win + X and select "Command Prompt (Admin)" or "Windows PowerShell (Admin)".
2. Run SFC Command: Execute the following command to run the System File Checker tool:

   sfc /scannow

3. Wait for Completion: Allow the scan to complete and follow any on-screen instructions if issues are found.

Step 6: Update Windows Manually

1. Download Update: Visit the Microsoft Update Catalog and search for the specific update you need.
2. Install Update: Download the update and manually install it by following the on-screen instructions.

Conclusion

By following these steps, you should be able to resolve the 0x80244002 WU_E_PT_SOAPCLIENT_OUTOFMEMORY error and successfully update your Windows 10 system. If the problem persists, consider seeking further assistance from Microsoft Support or a professional IT service.