Sony VAIO Windows 7 Operating System Not Found Error
It appears that I am not alone, my Sony Vaio has been giving me this problem – ‘Operating System Not Found’ error message after a blue screen of death. According to Windows error log file, it is a 0xc000007b error. Here’s what I’ve performed:
- Restore C drives with Vaio Recovery Center (problem persist)
- Performs memory diagnosis (problem persist)
- Update the BIOS (problem persist)
- Replace a brand new hard disk (problem persist)
Since it is a blue screen of death, I suspect it could be a ‘memory leak’ issue, most probably the RAM. I swapped the RAM with a brand new Kingston ram, sadly, problem persist.
Next option is to replace the 500GB 5200 rpm Toshiba hard disk with a brand new Western Digital hard disk, while cloning the hard disk, my Sony Vaio freezes for no reason, somehow it can’t read a specific part of my D drives. Whenever it reaches that particular sector, it crashes.
I thought it was a hard disk failure, a brand new hard disk is the answer. No, not quite. The problem still exist, I suspect it could be a bad partition or master boot sector.
So I decided to perform the ‘Restore Complete System’, what it does is it restore the C drives to the original factory condition, reformat and repartition the hard disk.

Since Windows 7 service pack 1 is now available for download, it is highly recommended to update your Windows.
It appears that I am not alone, my Sony Vaio has been giving me this problem – ‘Operating System Not Found’ error message after a blue screen of death. According to Windows error log file, it is a 0xc000007b error. Here’s what I’ve performed:
* Restore C drives with Vaio Recovery Center (problem persist)
* Performs memory diagnosis (problem persist)
* Update the BIOS (problem persist)
* Replace a brand new hard disk (problem persist)
Since it is a blue screen of death, I suspect it could be a ‘memory leak’ issue, most probably the RAM. I swapped the RAM with a brand new Kingston ram, sadly, problem persist.
Next option is to replace the 500GB 5200 rpm Toshiba hard disk with a brand new Western Digital hard disk, while cloning the hard disk, my Sony Vaio freezes for no reason, somehow it can’t read a specific part of my D drives. Whenever it reaches that particular sector, it crashes.
I thought it was a hard disk failure, a brand new hard disk is the answer. No, not quite. The problem still exist, I suspect it could be a bad partition or master boot sector.
Sony VAIO Operating System Not Found
So I decided to perform the ‘Restore Complete System’, what it does is it restore the C drives to the original factory condition, reformat and repartition the hard disk.
Since Windows 7 service pack 1 is now available for download, it is highly recommended to update your Windows.
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