Troble with external hard drive

[kopzen]

when i insert my external harddrive in windows 7 os it apears but when i try to double click on the drive to open it some message pops up requsting to formart the drive. after trying to format the drive i get another message saying that i do not have enough privillage to process the request

 

[ksiemb]

when i insert my external harddrive in windows 7 os it apears but when i try to double click on the drive to open it some message pops up requsting to formart the drive. after trying to format the drive i get another message saying that i do not have enough privillage to process the request

Try format with elevated command prompt.