Hi Masipay,
I'll try and help you as that is what community is about.
I had this problem previously and used something like this from the Ubunutu
forums:
Hey, I just fixed the same problem on my pc. Here is a step by step guide
that should work for you.
1. Insert and boot from your recovery disk.
2. Set your language options, and then Click on Repair your computer.
3. It should detect your windows 7 installation. Select your installation and
click next.
4. Click on the Command Prompt option.
5. Type in "diskpart" to load the windows partition editor.
6. Type in the following commands:
list disk
select disk 0
list partition
select partition 1
active
exit
Here, the command "list disk" will list all of the hard disks attached to
your computer. "select disk 0" will tell diskpart what disk to select. You
need to substitute 0 with the disk that contains your windows installation.
"list partition" will list all the partitions on the selected disk. "select
partition 1" will tell diskpart what partition to use. You will need to
replace 1 with the 100 mb partition that contains your windows boot loader.
"active" will make the selected partition on the selected disk the active
boot partition. "exit" will exit diskpart.
7. Back in the command prompt window, type in
bootrec.exe /fixmbr
bootrec.exe /fixboot
bootrec.exe /rebuildbcd
These commands will place the windows boot loader back into the MBR and boot
sector of your hard drive. the rebuildbcd switch will re-detect your windows
installations, and add the appropriate entries to the windows boot loader.
8. Remove the windows repair disk and reboot your computer.
9. Enjoy your windows
