Status: 0xc00000e9

When I start up windows normally it just freezes , I click "Launch Startup Repair" I get this:

"Windows has encountered a problem communicating with a device connected to your computer.

This error can be caused by unplugging a removable storage device such as an external USB drive while the device is in use, or by faulty hardware such as a hard drive or CD-ROM drive that is failing. Make sure any removable is properly connected and then restart your computer

If you continue to receive this error message, contact the hardware manufacturer"

How do I fix this problem?

Boot from a Win7 disc, or Win7 startup repair disc, rather than trying to boot from the drive. Sounds like bootmgr or the BCD store has an issue (pointing to the wrong partition, boot files missing).

Is this a Dell or HP system?

What was done just before this began?