Caution: Unless you an advanced PC user, we DO NOT recommend editing the Windows registry manually.
Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows.
A backup is automatically created before each scan, with the ability to undo any changes in a single click, protecting you against the possibility of PC damage.
The best part is that repairing registry errors [download] can also dramatically improve system speed and performance.
How to run Disk Cleanup (cleanmgr) (Windows XP, Vista, 7, 8, and 10): 800B0100 errors can be related to corrupt or outdated device drivers.
Drivers can work one day, and suddenly stop working the next day, for a variety of reasons.
Using a registry cleaner [download] automates the process of finding invalid registry entries, missing file references (like the one causing your 800B0100 error), and broken links within the registry.
Because of the time and complexity involved in updating drivers, we highly recommend using a driver update tool such as Driver Doc (Developed by Microsoft Gold Partner) to automate the process.
Driver Doc updates all of your PC device drivers, not just those associated with your 800B0100 error.
We do not guarantee that problems resulting from the incorrect use of Registry Editor can be solved. The next steps in manually editing your registry will not be discussed in this article due to the high risk of damaging your system.
If you would like to learn more about manual registry editing, please see the links below.