Installing Linux after both OSes on dual boot machine crashed

[anacampserote]

My computer came with Windows 7 and I installed ubuntu on it a while back. Windows 7 got a virus and I can't log in to fix it, nor can I access any restore points. ubuntu also crashed when I tried updating to the newest version and I can't log in. I've tried all of the options in recovery mode and nothing works; when I boot up in ubuntu the file systems won't be mounted.

Is there any way to install Linux again without losing my files in Windows and Linux, or at least not losing my files in my Windows partition?

Thank you.

[Sheh]

You need to explain which errors you are seeing on the screen now. Can you login to Windows? If no, explain why.

[yz89]

when I boot up in ubuntu the file systems won't be mounted

If you can access the shell (command line) in Booted up Ubuntu, then you can mount it manually by following commands

su
mkdir /mnt/MyMntPoint
mount /xxx/yyy /mnt/MyMountPoint

where /xxx/yyy is your selection after seeing following command output

sudo fdisk -l

Hope this helps,
Sincerely,
Yasser.