When I boot my computer, it boots fine.
When I restart it though, I get the following error:
An operating system wasn't found. Try disconnecting any drives that don't contain an operating system.
Press Ctrl+Alt+Del to restart
My BIOS is recently updated. The error happened before the update still.
I am running Windows 8.1 x64.
My computer specification is as follows. I have put what I hope to be the relevant information nearest to the top.
Motherboard
Name ASUS M5A97 EVO R2.0
BIOS
Name To be filled by O.E.M.
Description 2005
Vendor American Megatrends Inc.
Version 2005
Date 20130916
Harddisk 0
Name WDC WD5001AALS-00L3B2
Description Disk drive
Vendor (Standard disk drives)
Capacity 476938 MB
Interface Type SATA
Serial Number WD-WMASZ0136444
Firmware Revision 01.03B01
Model Number WDC WD5001AALS-00L3B2
Removable false
Support DMA true
Support LBA true
Support SATA true
SATA Generation Gen 2
Sector Total 268435455
Maximum Queue Depth 31
Highest Supported ATA Version 8
Security Supported true
Security Enabled false
Security Locked false
Security Frozen true
Security Count Expired false
Security Enchanced true
Harddisk 1
Name WDC WD10EZEX-00KUWA0
Description Disk drive
Vendor (Standard disk drives)
Capacity 953867 MB
Interface Type SATA
Serial Number WD-WCC1S4545930
Firmware Revision 15.01H15
Model Number WDC WD10EZEX-00KUWA0
Removable false
Support DMA true
Support LBA true
Support SATA true
SATA Generation Gen 3
Sector Total 268435455
Maximum Queue Depth 31
Highest Supported ATA Version 8
Security Supported true
Security Enabled false
Security Locked false
Security Frozen true
Security Count Expired false
Security Enchanced true
CPU 0
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
CPU 1
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
CPU 2
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
CPU 3
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
CPU 4
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
CPU 5
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
CPU 6
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
CPU 7
Name AMD FX(tm)-8350 Eight-Core Processor
Description Family 15-6 Model 2-0 Stepping 0
Vendor AuthenticAMD
Max Frequency 6300 MHz
Start Voltage 1.1625 V
Min Voltage 0.0125 V
Max Voltage 1.55 V
Max Ramp Voltage 0 V
Max Multiplier 31.5 X
Start Multiplier 5 X
L1 Data Cache Size 16 KB
L1 Data Cache Associativity 4
L1 Data Cache Lines 1
L1 Data Cache Line Size 64 Bytes
L1 Instruction Cache Size 64 KB
L1 Instruction Cache Associativity 2
L1 Instruction Cache Lines 1
L1 Instruction Cache Line Size 64 Bytes
L2 Cache Size 2048 KB
L2 Cache Associativity 16
L2 Cache Lines 1
L2 Cache Line Size 64 Bytes
HTLink 0
HT0 Multiplier 11 X
HT0 Width In 16 bits
HT0 Width Out 16 bits
HT0 Max Width In 16 bits
HT0 Max Width Out 16 bits
HT1 Multiplier 1 X
HT1 Width In 8 bits
HT1 Width Out 8 bits
HT1 Max Width In 8 bits
HT1 Max Width Out 8 bits
HT2 Multiplier 1 X
HT2 Width In 8 bits
HT2 Width Out 8 bits
HT2 Max Width In 8 bits
HT2 Max Width Out 8 bits
HT3 Multiplier 1 X
HT3 Width In 8 bits
HT3 Width Out 8 bits
HT3 Max Width In 8 bits
HT3 Max Width Out 8 bits
Memory 0
Name Physical Memory 0
Description
Vendor Team Group Inc.
Capacity 8192 MB
Max Bandwidth 10.7 GB/s
Part Number Vulcan-1600
Serial Number 0
Data Width 64 bits
Bus Frequency 685.714 MHz
Slot Location Slot 2
Memory 1
Name Physical Memory 1
Description
Vendor Team Group Inc.
Capacity 8192 MB
Max Bandwidth 10.7 GB/s
Part Number Vulcan-1600
Serial Number 0
Data Width 64 bits
Bus Frequency 685.714 MHz
Slot Location Slot 3
Monitor 0
Name Generic PnP Monitor
Description Generic PnP Monitor
Vendor (Standard monitor types)
Screen Width 1600 pixels
Screen Height 900 pixels
Max Width 1600 pixels
Max Height 900 pixels
Refresh Rate 0 Hz
Pixels Per XLogical Inch 96 pixels
Pixels Per YLogical Inch 96 pixels
USB Controller 0
Name EHCI USB Controller
Description EHCI USB Controller
Vendor AuthenticAMD
USB Controller 1
Name EHCI USB Controller
Description EHCI USB Controller
Vendor AuthenticAMD
USB Controller 2
Name EHCI USB Controller
Description EHCI USB Controller
Vendor AuthenticAMD
USB Controller 3
Name OHCI USB Controller
Description OHCI USB Controller
Vendor AuthenticAMD
Enhanced (101- or 102-key)
USB Controller 4
Name OHCI USB Controller
Description OHCI USB Controller
Vendor AuthenticAMD
USB Controller 5
Name OHCI USB Controller
Description OHCI USB Controller
Vendor AuthenticAMD
USB Controller 6
Name OHCI USB Controller
Description OHCI USB Controller
Vendor AuthenticAMD
grubto dual boot. I have rearranged my partitions, so that the Windows C: partition, formerly the third partition, is now the second partition. When trying to boot Windows, the above error results. I know it is on the right disk because it says "Setting partition type to 0x7" and empirically this means that it has read (not set) the type of the current partition and found it to be of type "7" (NTFS). Not sure what else is going wrong...