Posted 15 December 2012 - 12:12
looking at the snapshot of disk management, those partitions were created through windows 7 DVD. one C drive 100,000 MB (100 MB system reserved partiton automatically created)and then created two other partitions viz D and E on the same volume but after creation of partitons the person did not format the D and E partitions and proceeded to install on the C partiton. proceeding to install on particular partition (here C) does not require to format separately as it does automatically. it seems the person who installed windows 7 either did not aware of format function after creations of paritions or just become lazy or forgot to format D and E partitions.
formating D and E partitions/drives either through windows explorer or via Disk Management will not affect on C drive. In fact through windows if you want to format any drives will not affect at all to its windows drive. if affected then at the time of format it will not allow you.
so go for format.