Can not change partions at fresh reload

Have a 1 tb hard drive i had split into 3 partitions--one for os and programs--1 for games--and remaining space for storage--pc was acting funny and has been awhile since i built it anyway so was going to do a fresh install and and delete all partitions and just go with one,started disk picked time language and keyboard picked custom install and when i get to the partion screen it will not let me change or delete any of them in the advanced screen,the delete button is greyed out all i can do is reformat the os partition i made and the one that the system made i can format,i know i have deleted and changed partitions in this screen before,Any ideas

Yes i want to delete all partitions and start with a 1 tb drive as if it were new out of the box,no partitions just the c drive and system allocated space and start with a complete fresh set up

yes i put in the disk which is 64 bit hp oem and then restarted the pc and f12 into the boot menu and selected cd rom and it runs,says starting windows and then goes to the set language and keyboard stuff then select custom install and then get to where the partitions are and it will not let me do anything except format them it greys out the delete on all of them so there is a problem somewhere then i think

Ya i don't understand either i know i have done it before its software i purchased from newegg (windows 7 64 bit oem which is what i buy for all the builds i do)and i have purchased alot over the years so it's not branded,I appreciate the assistance anyway guys thank you.

maybe this is doing something in the set up partition screen the partitions are listed as dynamic don't think they should be

AddRAM said:

My bad, I thought maybe the HP in your description was for Hewlett Packard

Lol all good no problem---Home premium