Why has my google chrome changed?

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When i used to click on google chrome, a page would come up with like 4 different options in the middle i could choose from, like google, youtube, gmail and one other.

Then today when i went into again, a box came up saying some sort of corrupted file meant theey couldnt save the original chrome settings. So when i go into now, those 4 options have gone which is annoying cos they were so convenient. Now they have 8 options, 5 of which are blank ,the other 3 say google, welcome to googlechrome, and chrome web store

Wot is going on, is this familar to anyone? And how do i get my orignal homepage back??
done both, no difference. any other ideas from people who actually know anything worth mentioning unlike these 2 dumbasses