C Windows Prefetch Readyboot Readyboot Etl
disdeskraftcoWhat is C Windows Prefetch Readyboot Readyboot Etl and How to Fix It?
If you have ever checked your Windows Event Viewer, you might have noticed some warnings or errors related to a file called
C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl. What is this file and why is it causing problems? In this article, we will explain what this file does, why it might be problematic, and how to fix it.C Windows Prefetch Readyboot Readyboot Etl
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What is C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl?
This file is part of a feature called
ReadyBoot, which is a component of SuperFetch. SuperFetch is a technology that tries to improve the performance of your system by preloading frequently used applications and files into memory. ReadyBoot is a specific version of SuperFetch that works during the boot process. It analyzes the data from the previous five boot cycles and creates a plan for a boot-time memory cache. This cache is stored in the ReadyBoot.etl file, which is located in the Prefetch folder. The Prefetch folder is a system folder that contains information about the files and applications that are loaded during startup and shutdown.Why is C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl problematic?
The main reason why this file might cause issues is that it has a limited size of 20 MB. This means that if the boot-time memory cache exceeds this size, some events might be lost or not logged to the file. This can result in warnings or errors in the Event Viewer, such as: The maximum file size for session "ReadyBoot" has been reached. As a result, events might be lost (not logged) to file "C:\WINDOWS\Prefetch\ReadyBoot\ReadyBoot.etl". The maximum files size is currently set to 20971520 bytes.
This does not necessarily mean that your system performance is affected, but it can be annoying to see these messages in the Event Viewer. Another reason why this file might be problematic is that it might not be very useful if you have a fast SSD (solid state drive) instead of a HDD (hard disk drive). SSDs are much faster than HDDs, so they do not benefit much from preloading data into memory. In fact, some experts suggest that disabling SuperFetch and ReadyBoot can improve the performance and lifespan of SSDs.
How to fix C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl?
There are two main ways to fix this file: increasing its size or disabling it altogether. To increase its size, you can follow these steps: Open the Registry Editor by pressing Windows + R and typing regedit. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\WMI\Autologger\ReadyBoot. Double-click on the MaxFileSize value and change its base to Decimal. Enter a new value in bytes, such as 40000000 for 40 MB. Click OK and close the Registry Editor. Restart your computer for the changes to take effect.
To disable ReadyBoot, you can follow these steps: Open the Services Manager by pressing Windows + R and typing services.msc. Find the SuperFetch service and double-click on it. Change the Startup type to Disabled and click Stop. Click OK and close the Services Manager. Delete the ReadyBoot.etl file from the Prefetch folder. Restart your computer for the changes to take effect.
Note that disabling ReadyBoot might affect your boot time slightly, especially if you have a HDD. You can always enable it again if you notice any negative impact on your system performance.
Conclusion
C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl is a file that stores a boot-time memory cache created by ReadyBoot, which is a component of SuperFetch. This file might cause warnings or errors in the Event Viewer if it reaches its maximum size of 20 MB. You can fix this by increasing its size or disabling ReadyBoot altogether. However, you should be careful when modifying the registry or the services, as this can affect your system stability. You should also backup your data before making any changes.
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