[URGENT HELP] Why is cannot install Windows 7 on my X120e?

I have got X120e from my college with ubuntu 11.04 installed. But my half of softwares dont work on this Lunix OS so decided to install windows 7, downloaded officially as i have keys for activation.
I used USB drive to install, Windows 7 setup sucessfully started on booted up from USB. Than deleted all partitions than made new partions but when i select partition and clicking continue… its getting error

"Setup was unable to create a new system partition or locate an existing system partition. See the Setup log files for more information"
I have not connected any other devices.
My Hard disk is NOT dynamic, its basic.
I have tried boot order of the HD and USB
I have Change SATA from ACHI to IDE compatibility..
Tried clean version of Windows 7 Installation too, but NO LUCK..
Tried making partion as active but still same..
Googled this error but no solution..

I have contacted lenovo service centre, but this are taking up calls.
I am fed up of this, please help me..
I have exams coming and i need this urgently.
SYSTEM INFORMATION of Lenovo X120e,

System information report, generated by Sysinfo: 9/20/2011 12:27:31 PM
http://sourceforge.net/projects/gsysinfo
SYSTEM INFORMATION
Running Ubuntu Linux, the Ubuntu 11.04 (natty) release.
GNOME: 2.32.1 (Ubuntu 2011-04-14)
Kernel version: 2.6.38-8-generic (#42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011)
GCC: 4.5.2 (i686-linux-gnu)
Xorg: 1.10.1 (19 April 2011 03:33:17PM) (19 April 2011 03:33:17PM)
Hostname: ThinkPad-X120e
Uptime: 0 days 1 h 35 min
CPU INFORMATION
AuthenticAMD, AMD E-240 Processor
Number of CPUs: 1
CPU clock currently at 1500.000 MHz with 512 KB cache
Numbering: family(20) model(1) stepping(0)
Bogomips: 2993.88
Flags: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc up nonstop_tsc extd_apicid aperfmperf pni monitor ssse3 cx16 popcnt lahf_lm svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch ibs skinit wdt npt lbrv svm_lock nrip_save pausefilter
MEMORY INFORMATION
Total memory: 1610 MB
Total swap: 12275 MB
STORAGE INFORMATION
SCSI device – scsi1
Vendor: ATA
Model: WDC WD3200BEVT-0
SCSI device – scsi0
Vendor: Generic-
Model: Multi-Card
HARDWARE INFORMATION
MOTHERBOARD
Host bridge
Advanced Micro Devices [AMD] Family 12h/14h Processor Function 7
Subsystem: Advanced Micro Devices [AMD] Pavilion DM1Z-3000 Host bridge
PCI bridge(s)
Advanced Micro Devices [AMD] Device 1514 (prog-if 00 [Normal decode])
ATI Technologies Inc SBx00 PCI to PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
ATI Technologies Inc Device 43a0 (prog-if 00 [Normal decode])
ATI Technologies Inc Device 43a1 (prog-if 00 [Normal decode])
Advanced Micro Devices [AMD] Device 1514 (prog-if 00 [Normal decode])
ATI Technologies Inc SBx00 PCI to PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
ATI Technologies Inc Device 43a0 (prog-if 00 [Normal decode])
ATI Technologies Inc Device 43a1 (prog-if 00 [Normal decode])
USB controller(s)
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
ATI Technologies Inc SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
ISA bridge
ATI Technologies Inc SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
Subsystem: Lenovo Device 21df
GRAPHIC CARD
VGA controller
ATI Technologies Inc Device 9803 (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 21df
SOUND CARD
Multimedia controller
ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
Subsystem: Lenovo Device 21df
NETWORK
Network controller
Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device 8195
Ethernet controller
Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
Subsystem: Lenovo Device 21df

Answer #1
dbz007,
Ubuntu is a Linux Based OS and the Partition has been Formatted and prepared
in this way i.e linux OS.
You need to prepare your hard Drive for Win 7 which is a NTFS Based OS.
IF you can still boot from USB, you will have an option were you can format the Hard Drive during the installation process.
More iNFO about Dynamic & Basic HDD…
http://strangelyperfect.tv/6415/how-to-convert-a-dynamic-disk-to-basic-disk-in-windows-7/
Good Luck
Valdaz
Answer #2
Just format it with NTFS and go ahead with the Win 7 install
Not sure why you didn’t keep the Ubuntu and shrink the partition, create a new partition and install Win 7 on that and have dual boot ? Always nice to use Ubuntu
Answer #3
i formatted to ntfs my Hard disk using Western digital Data Lifeguard Diagnostic but still same!!!
Answer #4
dbz007 replied:
I have Change SATA from ACHI to IDE compatibility..
Doesn’t Win 7 have built in ACHI drivers in it ?
Answer #5
I downloaded ACHI drivers from lenovo official site, driver got loaded… but no luck!!!
I have downloaded clean version of win7 and also moded but non of them helped!!