The error code 0x00000099 is associated with the bug check message INVALID_REGION_OR_SEGMENT in Windows. This indicates a critical issue related to how memory regions or segments are managed by the kernel.

Here’s a breakdown of the error and potential solutions:

Understanding INVALID_REGION_OR_SEGMENT:

• In Windows, the kernel manages memory allocation and access for different parts of the system. It divides memory into regions and segments for specific purposes.
• The 0x00000099 error signifies that the kernel encountered an invalid set of parameters when trying to initialize a memory region or segment using the functions ExInitializeRegion or ExInterlockedExtendRegion. This could lead to memory access violations or system instability.

Causes of INVALID_REGION_OR_SEGMENT:

• Faulty Device Drivers: Outdated, corrupted, or incompatible device drivers can sometimes misuse memory allocation functions, leading to invalid region or segment definitions.
• Software Bugs: Bugs within system components or programs that interact with memory management can also cause issues with region or segment initialization.
• Hardware Issues (Less Likely): In rare cases, hardware problems with your memory (RAM) might contribute to data corruption that affects memory management functions.

Troubleshooting Steps for INVALID_REGION_OR_SEGMENT:

Here are some steps you can take to try and fix the 0x00000099 error:

1. Update Device Drivers:

   • This is a crucial step. Update the drivers for your graphics card, network adapter, storage controllers, and other major hardware components. You can usually find updated drivers on the manufacturer’s website for your specific device model.

2. Scan for Malware:

   • Although less likely, run a thorough malware scan using your preferred antivirus software to rule out the possibility of malicious software interfering with system processes.

3. System File Checker (SFC):

   • Open Command Prompt (Admin).

   • Type the following command and press Enter:

     <code data-test-id="code-content">sfc /scannow
     </code>

   • This command scans your system files and attempts to repair any corrupted files related to memory management or device drivers.

4. Check System Logs (Advanced Users):

   • Event Viewer can be used to access system logs that might contain more details about the memory management error. While deciphering event viewer entries can be technical, investigating logs around the time of the error might provide clues about the failing driver or software component.

   • Look for entries mentioning “memory management” or “BugCheck 0x99” in the system logs.

5. System Restore (if applicable):

   • If the error started happening recently after a specific event (program installation, driver update, etc.), consider performing a System Restore to revert your system to a point before the error occurred. (Caution: This will revert any changes made to programs and settings since the restore point).

Additional Tips:

• Keep your Windows system up-to-date with the latest patches and security fixes.
• Consider using a reliable memory diagnostic tool to check for memory-related issues that might be contributing to data corruption.

Seeking Help:

If none of these solutions work, it’s recommended to seek help from a computer technician. They can delve deeper into the specific details of your BSOD using tools like debuggers and analyze system dump files to pinpoint the root cause of the invalid region or segment error. This might involve identifying a specific faulty driver, software conflict, or hardware issue.