Fix Driver Overran Stack Buffer BSoD Error in Windows PC

The “DRIVER_OVERRAN_STACK_BUFFER” error (stop code 0x000000F7) usually occurs when a driver behaves unexpectedly or writes more data to the kernel stack than it is allowed to. When this happens, Windows immediately shuts down to prevent system corruption that results in a sudden crash and a blue screen of Death. This type of error is a security measure implemented by Windows to avoid potential malicious exploits, such as buffer overflow attacks, which could allow unauthorized access to the system. Outdated or corrupted drivers, particularly those related to graphics cards (e.g., nvlddmkm.sys), storage devices, or system firmware, are common reason behind this. Other factors include incompatible or faulty RAM, overclocking, hardware conflicts, or system file corruption. Whatever the reason, the troubleshooting steps below should help you fix it.

What Causes the “Driver Overran Stack Buffer” BSoD?

This error usually occurs when a device driver tries to write data past its allocated memory space (the stack), overwriting other crucial data, which Windows stops to prevent corruption or security issues. This is usually caused by faulty or outdated drivers (especially graphics or storage), corrupted system files, hardware issues (such as insufficient RAM), conflicting software, or overclocking.

• Corrupted or Outdated Drivers: Faulty device drivers may write invalid data to the system’s memory stack, triggering a buffer overrun and causing BSoD.
• Corrupted Windows System Files: If essential boot or kernel files are damaged, Windows may crash while trying to load a driver.
• Memory (RAM) Problems: Faulty RAM modules and unstable memory timings can also cause stack buffer overruns.
• Malware or System Infection: Some malware modifies driver-related files or injects code into memory, leading to system instability.
• Hardware Conflicts or Failing Components: A failing SSD/HDD, faulty USB device, or damaged internal component can also cause this issue.

Disconnect External Devices & Reboot Windows

Faulty USB devices, external hard drives, and dongles can load unstable or unsigned drivers. If one of these drivers misbehaves, it causes the stack buffer to overflow and triggers a BSoD. Disconnecting all peripherals helps you quickly identify if the issue is hardware-installed driver related.

• Shut down your PC completely.
• Unplug all external devices, excluding keyboard and mouse,
• Power ON the computer.

If the system stops crashing, reconnect each device one by one to find out the culprit.

Note: If Windows crashes before you can boot into the desktop, start the computer in Safe Mode and apply the solutions below.

Update Device Drivers

Device drivers serve as the communication bridge between your hardware and Windows. If they are outdated, incompatible, or corrupt, they can cause errors like DRIVER OVERRAN STACK BUFFER. Updating drivers ensures your hardware functions efficiently with your operating system and reduces the risk of BSODs.

Updating device drivers is crucial for maintaining system stability and compatibility.

• Search for Device Manager and open it.
• Expand a category like Display adapters.
• Right-click your graphics card and choose Update driver.
• Select Search automatically for drivers.
• Repeat these steps for other important devices (such as chipsets, networks, etc.).
• Restart your PC after updates.

Well, if the issue started recently, click Properties → Driver → Roll Back Driver.

Tip: GPU drivers are the most common reason. Download and install the latest drivers from Intel, NVIDIA, or AMD.

Install Windows updates

Keeping Windows updated ensures you have the latest security and compatibility fixes. Updates address known bugs, security vulnerabilities, and issues with hardware compatibility that could trigger Blue Screen errors like DRIVER OVERRAN STACK BUFFER.

Updating Windows to the latest version is always recommended as this makes the PC more stable

• Press Windows key + I to open the Windows settings app,
• Go to Windows update, and hit the check for updates button,
• If new updates are pending there, allow them to download and install on your computer.
• Restart your computer to apply changes.

Repair Corrupted Windows System Files

Corrupted system files are another common cause of instability and compatibility issues. The System File Checker (SFC) tool scans for damaged or missing files and replaces them, potentially fix BSOD errors caused by file corruption.

• Type cmd in the search, right-click Command Prompt, and select Run as administrator.
• Now type the command sfc /scannow and press enter key
• The utility scan for corrupt system files and attempt to repair them.

This will start the scanning process for corrupted and missing system files. If this System File Checker finds out incorrect files, overwrite the protected files. It will extract the correct system file from the system file backup (namely, dllcache) and replace the incorrect file.

This process may take some time, so be patient and avoid interrupting it.

Once done, you need to reboot your PC to take the changes into effect.

Note – In some cases, the SFC scan may not be able to repair all corrupted files. If that happens, you can try running the DISM (Deployment Image Servicing and Management) command to repair the Windows system image.

DISM /Online /Cleanup-Image /RestoreHealth

Run Windows Memory Diagnostic Tool

Your hardware can often cause these types of errors. If you recently installed any new hardware, we advise you to remove or replace it and check whether that resolves the error. If your hardware is incompatible with your motherboard, your system will crash and you’ll get a BSOD.

Also, faulty Memory Modules can sometimes cause Blue Screen Errors. The Windows Memory Diagnostic Tool checks your system memory for errors, helping you identify and fix faulty RAM.

• Press the Windows key + R, type mdsched.exe, and hit the enter key to open the Windows Memory Diagnostic Tool.

• Here you will see two options to run the Tool, save your work, and click on the first option, Restart now and check for problems.
• This will restart Windows and check for memory Module Errors.
• Wait until the process completes 100%, then restart Windows. You can find the Memory Diagnostic Test Results from here.

If errors appear, remove and reinsert RAM sticks or replace the faulty module.

For advanced users: Use MemTest86 for deeper testing.

Diagnose and Repair Hard Drive Issues

Bad sectors, file system errors, or problems with the Master Boot Record (MBR) can cause crashing and BSODs. Checking your hard drive and repairing errors can help address physical or data problems.

• If you can’t boot normally, enter Safe Mode or Windows Recovery Environment (WinRE).
• Open Command Prompt as administrator.
• Run bootrec.exe /rebuildbcd, bootrec.exe /fixmbr, and bootrec.exe /fixboot sequentially.
• Type chkdsk /r c: and follow prompts to schedule a disk check.
• Restart your PC to perform the scan.

If your drive shows heavy bad sectors, consider replacing the HDD/SSD.

Run a Full Malware Scan

Some modern malware injects malicious code into drivers or memory stacks, causing buffer overrun errors.

• Open Windows Security.
• Go to Virus & threat protection.
• Select Full Scan.

Again, Multiple antivirus or firewall programs can create conflicts and interfere with system resources, sometimes resulting in Blue Screen errors. Disabling these tools temporarily can help identify if they are responsible.

Perform a System Restore

System Restore reverts your system settings and files to a previous point in time, undoing recent changes that might have caused instability or the BSOD. It’s safe and can resolve problems caused by updates, drivers, or apps.

• Search for “Create a restore point,” then open it.
• Click System Restore.
• Follow prompts to choose a restore point before your issue began.
• Complete the restore and restart your PC.

Again, if deep system-level corruption exists, resetting Windows is the fastest way to restore clean system files and drivers.

Frequently Asked Questions

1. What is Driver Overran Stack Buffer?
It’s a BSoD error caused when a driver writes more data to memory than allowed.

2. Is this error harmful?
Yes, it can lead to system instability but is usually fixable with software repairs.

3. Can a bad USB device cause this?
Yes—faulty external devices or USB drivers can trigger the error.

4. Should I update BIOS?
Only if other fixes fail. Outdated BIOS versions can cause driver/memory issues.

5. Can RAM cause this BSoD?
Yes. Faulty RAM is one of the most common hardware causes.