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CACHE_INITIALIZATION_FAILED Bug Check 0x66 [Solved]
Update all the installed drivers to quickly fix things
4 min. read
Published onAugust 19, 2024
published onAugust 19, 2024
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To fix various driver issues on your PC, you will need a dedicated tool to find the freshest and the original drivers. You can use PC HelpSoft Driver Updater to do it in 3 easy steps:
TheCACHE_INITIALIZATION_FAILEDBSOD, with an error code0x00000066, causes the OS to crash during the boot stage due to issues with the cache memory initialization. And since the blue screen error is rarely encountered, you won’t find much about it!
Based on my research, theCache Initialization Failederror0x66can be caused by corrupt system files, low available storage, outdated or buggy drivers, or misconfigured boot settings. Before you proceed to the troubleshooting, disconnect all non-critical peripherals and install any pending Windows updates.
How do I fix the CACHE_INITIALIZATION_FAILED BSOD?
1. Update all the drivers
When faced with theCACHE_INITIALIZATION_FAILEDblue screen error in Windows, your primary approach should be toupdate the drivers. If a better version is not found locally, head to the manufacturer’s website, locate the latest releases, and thenmanually install the latest driver.
2. Clear storage space in the system drive
The built-in utility,Disk Cleanup, allows you to quickly delete non-critical files from the PC, clearing up significant storage. If this is a frequent problem for you, it’s best toset upStorage Senseto automatically delete such files on a periodic basis.
3. Repair the corrupt system files
SinceCACHE_INITIALIZATION_FAILEDcan also be caused bycorrupt system files, repairing them using theDISM(Deployment Image Servicing and Management)and SFC(System File Checker)scans could get things up and running. These will replace all corrupt or broken protected system files with their cached copy stored on the PC!
4. Turn off fast startup
5. Perform a system restore
If it’s a recent software-based change triggering theCACHE_INITIALIZATION_FAILEDBSOD,performing a system restoreshould get things up and running. And if no restore points are available, you can alwaysreinstall Windows.
But before you do that,check the BSOD error logs, identify the problematic file, driver, or module, and take the necessary measures. For regular users, the process is bound to prove tricky, but it is always worth a shot!
In case the blue screen error reappears, it’s likely a hardware malfunction or connection issues to blame at this point. So, I recommend you visit a local repair shop and get the PC inspected for any hardware-related problems.
For any queries or to share which fix worked for you, drop a comment below.
More about the topics:Blue Screen of Death,BSoD error codes,crash
Kazim Ali Alvi
Windows Hardware Expert
Kazim has always been fond of technology, be it scrolling through the settings on his iPhone, Android device, or Windows PC. He’s specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
Long-time Windows user, Kazim is ready to provide a solution for your every software & hardware error on Windows 11, Windows 10 and any previous iteration. He’s also one of our experts in Networking & Security.
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Kazim Ali Alvi
Windows Hardware Expert
Kazim is specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
