blue host reset wordpress reinstall wordpress manual need to manually create a database Install Database Failure

You'll need to manually create a database and enter your credentials.

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First descript the problem I meet, after I use oneclick install on bluehost and success, all works fine.

but then I base some reason want to change a login username, so I go to somewhere that manager user account on bluehost,

and choose the account I want to delete, when do it I choose a item which write "delete the file with that account same time"

then...  the tragedy occur...........................

When I go to cpanel , I find whole effort I make to the wordpress are all deleted,

and the wordpress manager cannot  be opened anymore,

most important, I can enter "www.mydomain.com" before,

now enter it it return error.....  

that represent all my efforts are erased.....

feels really bad......  and I don't purchase the restore file function and didn't backup my files first.........

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Next Step is sure I went to the home page and click install wordpress again,

all is well at entering folder path, domain name, password, 

but every time after I click install button, it returns error during installing,

even I deleted the public_html folder not work,

damn I spent that much money on bluehost and now the most important function-- wordpress can't be used?

I try to chat with the support page but the people waiting for chat is too much I have to in line for long time,

and I'm not in united state I basically don't have the ability to talk by phone,

so what can I do?  damn

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Finally,

Thanks to WWW and kindness people sharing this post on the internet,

It's the GOD to me to save me from this hopeless Valley,

I want praise it so much,

How To Delete A WordPress Blog And Start Over From Scratch

http://www.websitesmadesimple.org/how-to-delete-a-wordpress-blog/

I do by his ionstruction and thankful that

MY SITE IS BROUHT BACK TO LIFE!!!!!

and even gret i that it's pure wordpress,

not cintain lots of advertisement and market selling lots of themes whatever

it's great thing to me as far, I don';t need that much elaborate site as far

the pure is so silent, i like it.