Wubi uses the Windows boot loader, so you may want to double check the settings, which you can find in System I believe. Also, Wubi Ubuntu installs live in a large file within your windows partition, so make sure that that file hasn't been moved or damaged.
This is probably not the type of question you should ask here
There are however, lots of places that will help you.
I myself would start at the Ubuntu forums and then if you can't find the information there, ask in the Ubuntu IRC 'chat' room on Freenode
Since Wubi, as mentioned, is just a big file on your Windows partition, it might be impacted by fragmentation. It did with me once - I defragmented and it worked.
I have been using Ubuntu on WUBI for the past month or so on my desktop and my laptop, ever since 9.10 came out. While I have been extremely happy with Linux, I just had it refuse to boot and had to reinstall for the third time last night. Defrag and chkdsk /r did not work for me. Fortunately, getting Ubuntu up and running is relatively easy, but I'm starting to feel pretty turned off by wubi. It's awesome for what it does, but at this point it's just not ready to work as a serious dual-boot alternative imo
Wubi uses the Windows boot loader, so you may want to double check the settings, which you can find in System I believe. Also, Wubi Ubuntu installs live in a large file within your windows partition, so make sure that that file hasn't been moved or damaged.
This is probably not the type of question you should ask here
There are however, lots of places that will help you. I myself would start at the Ubuntu forums and then if you can't find the information there, ask in the Ubuntu IRC 'chat' room on Freenode
Since Wubi, as mentioned, is just a big file on your Windows partition, it might be impacted by fragmentation. It did with me once - I defragmented and it worked.
I have been using Ubuntu on WUBI for the past month or so on my desktop and my laptop, ever since 9.10 came out. While I have been extremely happy with Linux, I just had it refuse to boot and had to reinstall for the third time last night. Defrag and chkdsk /r did not work for me. Fortunately, getting Ubuntu up and running is relatively easy, but I'm starting to feel pretty turned off by wubi. It's awesome for what it does, but at this point it's just not ready to work as a serious dual-boot alternative imo