Thanks for thatMeans the boot sector of your hard drive is corrupt. If you've not seen it before probably best to have it done by someone in the know.
If it is your hard drive, they are not expensive, mine went and I got a new 500gb for about 34 quid. Only problem nowadays you don't get the windows discs. They are on a partition but if your hard drive is goosed then you've lost that option to re-install as well. If you have the windows product code , look for a sticker on laptop, then download an os file from microsoft for your version, its free but a big download. Loads of info on net.
with windows 7 you get the option to write a set of recovery discs, it not obvious looking through your installed programs but the option is available
If you where local to me, I would offer to have a look...But Wales is a big place
last time I did one was a year or so ago had to search the laptop for it, it was an acer aspire and cant remember how I got to it, I will do some diggingThat useful to know, I've just bought a laptop with Win7 on and it's got a recovery partition, I will have to look for the creating discs option, any pointers?.