I have an HP laptop that came with factory installed Windows 7 Home Premium. I was attempting to install Ubuntu 12.04 as a dual boot on a partition that I had already created. I didn't have anything in the partition that I created and was saving for the Ubuntu installation. I didn't realize that that's not the way to go, but that's something I already know.
After I, like an idiot, screwed with the partitions, Windows 7 refuses to boot and reports an error 0xc0000225.
I booted with the Windows 7 Home Premium disc and it told me that type of windows wasn't compatible with the windows that is installed on the computer after selecting the 'repair' option.
I then decided that I would wipe the HDD and install Windows again and I found that Windows didn't recognize any partitions that are on the HDD. Ubuntu still recognises both the main partition (the one that windows is installed on, still NTFS), and the recovery partition (also NTFS). The only one that I really screwed with was the partition with nothing on it.The windows files aren't lost yet because Ubuntu can still access them.
What can I do to fix this? Is there a way to make these problems go away? Thanks for all of the help, and let me know if I wasn't clear on anything.