Windows 7 BSOD on start up and safemode

The error message "nvsmu.sys page fault in nonpaged area" suggests that there may be an issue with a specific driver related to your NVIDIA graphics card. Here are some steps you can take to troubleshoot this issue: 1. Update or Roll Back the Graphics Card Driver: - Since you recently downloaded a new driver for your video card, it might be causing conflicts. Try rolling back to the previous driver version or updating to the latest driver from the NVIDIA website. 2. Boot into Safe Mode: - If you're unable to access your system normally, try booting into Safe Mode. In Safe Mode, you can uninstall or update the driver without loading unnecessary drivers and services. 3. Check for Windows Updates: - Make sure that all Windows updates are installed. Sometimes, system updates can address driver compatibility issues. 4. Check Disk for Errors: - Run a disk check to verify that there are no issues with the hard drive. You can do this by opening a command prompt as an administrator and typing chkdsk /f /r. 5. Run System File Checker (SFC): - Use the System File Checker tool to scan and repair corrupted system files. Open a command prompt as an administrator and type sfc /scannow. 6. Check for Malware: - Although you have multiple security programs installed, consider running a full system scan with all of them to ensure no malware is causing the issue. 7. Check Hardware: - Since you mentioned installing a new hard drive recently, ensure that the connections are secure and the drive is functioning properly. 8. Inspect RAM Modules: - Even though the Windows Memory Diagnostic tool showed no issues, try reseating the RAM modules or testing them individually to rule out any memory-related problems. 9. Check Event Viewer: - Look for any specific error codes in the Event Viewer related to the crash. This can sometimes provide more detailed information about the issue. By following these steps, you should be able to pinpoint and resolve the "nvsmu.sys page fault in nonpaged area" error. If the issue persists, feel free to provide more details for further assistance.