Windows update error log:
Windows updates are small programs that come online from Microsoft. There are multiple updates uploaded to the Microsoft servers and can be installed manually or automatically. For each and every update installation, Microsoft maintains a logging center called windows update log. If there are any issues happen while installing the windows updates, they can be verified under windows update error log.
Windows update error log is a small file which is stored under system folder for the purpose of system administrators so that a technician can check and resolve the issues related to the windows updates by installing prerequisite updates.
If these updates happen sequentially, there will be generally no issues but if the update fails due to the interruption on the Internet or some other missing updates when done manually, these events will be recorded into windows update error logs.
These windows update error logs appear under event viewer program which provides the necessary actions to be taken to resolve these windows update errors.
Windows update error logs are defined in terms of designated codes and numbers such that the system can understand the actual problematic areas on your computers. Whenever you refer the windows update error log to a technician for help, you may also provide them the error codes for a better understanding.
In some cases, windows update error log is more helpful to find out the error type. In case if the windows update fails due to the link failure or a system restore, these events will be recorded in the windows update error logs folder.
These windows update error logs can also be obtained from the windowsupdate.log file which is stored in the system folder. The behavior of these windows updates is shown in the log files as shown in the below link.