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| Message | Description | Mitigation |
|---|---|---|
| CBS_E_HANG_DETECTED; A failure to respond was detected while processing the operation. | Subsequent error logged after getting 0x800f0821 | A servicing operation is taking a long time to finish. The servicing stack watchdog timer expires and assumes that the system stopped responding. Extending the timeout value mitigates the issue. Increase the resources on the device. If it's a virtual machine, increase virtual CPU and memory to speed up operations. |
Please free up sufficient resources and try again. Clean boot Windows using msconfig.exe.
A clean boot is the process of starting Windows without loading any third-party applications or services.
- Launch
msconfig.exeand select theServicestab. - Enable the
Hide all Microsoft servicescheckbox. This is an important step. (Now, the list will contain only 3rd party services.) - Click
Disable all. - Click OK. -Open Task Manager (Ctrl + Shift + Esc) and click on the Startup tab. Disable all startup apps.
- Restart Windows.
For more information, please refer to the Microsoft article.
How to perform a clean boot in Windows
(Step 3 in the above link is crucial. You need to first enable "Hide all Microsoft Services" before clicking "Disable all".)