What do you use "E:\" for exactly? Just curious.
Note: You actually have 4 partitions

One of which is hidden as the System Reserved partition.
What do you mean you can't access DVD Rom or your USB/Pen drives? Is there an error code that shows? I'm not quite sure what you mean here, you'll need to clarify that.
If you do a fresh install I wouldn't suggest installing it over a partition, format that HDD and install over the full thing, or format all the partitions
except the one with your backup files on it, merge them into one volume, then install windows over that, copy your backup files over to the partition with your newly installed Windows on it, and format the backup partition, then expand that back into the allocation with your Windows partition... How much space do you have on the partition currently marked E:\? and what would you do with the other partitions that already have Windows installed on?