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"error loading operating system", after security zone was set

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I installed Acronis True Image Home 2010. Set security zone and reboot, message "error loading operating system" came up. Tried fixmbr, fixboot, still same. The I created bootable floppy from another computer running xp and tried booting from that floppy, it works!!! Can anybody help me to get rid of this floppy?
System info:

Computer:
Computer Type ACPI Multiprocessor PC
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 3
Internet Explorer 7.0.5730.13 (IE 7.0)
Date / Time 2010-06-22 / 16:11

Motherboard:
CPU Type DualCore Intel Core 2 Duo, 2800 MHz (10.5 x 267)
Motherboard Name Asus P5Q SE (3 PCI, 2 PCI-E x1, 1 PCI-E x16, 4 DDR2 DIMM,
Motherboard Chipset Intel Eaglelake P45
System Memory 2048 MB (DDR2-800 DDR2 SDRAM)
Display:
Video Adapter NVIDIA GeForce 8400 GS (512 MB)
Storage:
IDE Controller Intel(R) ICH10 Family 2 port Serial ATA Storage Controller 2 - 3A26
IDE Controller Intel(R) ICH10 Family 4 port Serial ATA Storage Controller 1 - 3A20
Storage Controller Marvell 61xx RAID Controller
Floppy Drive Floppy disk drive
Disk Drive WDC WD1600AAJS-00L7A0 (149 GB, IDE)

Partitions:
C: (NTFS) 149.0 GB (133.1 GB free)
Total Size 149.0 GB (133.1 GB free)

0 Users found this helpful

Hello Zhiping Liu,

Please accept our apologies for the inconvenience.

I may recommend you to try to repair Master Boot Record once again:

  • Please boot up from the Windows Bootable CD, then go to the Recovery Console (the first Repair option you come to).
  • From the command prompt please type:

FIXMBR C:
FIXBOOT C:
BOOTCFG /rebuild

  • After that, please reboot your computer.

If the issue still persists, please try performing an in-place upgrade (reinstallation) of Windows XP. The full description of this process is available at http://support.microsoft.com/default.aspx?scid=kb;en-us;315341. Windows Repair Installation will keep your applications and configuration untouched and will allow you to install the appropriate drivers in order to make Windows bootable.

Please reply to this thread if you have any additional questions.

Thank you.