trimming of videos

What software can I use to delete specific portions of videoclips from my computer ?
( not just from the final edited film )

I use Premiere Elements 12 and Windows 7 .

Someone suggested to export the portions as new clips, and delete the original clip files from the hard disk.

But, in Premiere Elements 12,
when I select a clip from the timeline and then the File menu, the Export option is always disabled.

I use a free app called VideoToVideo (http://www.videotovideo.org/) to break my long GoPro footage into a few small clips of the footage I want to keep.

It has a splitter feature that just lets you mark in and out points, and splits off that section as a separate file, without re-encoding, etc, so the split files are the same quality as the original.

Here are the steps:

1. Tools-->Split Video-->File(Load Source File)

2. Set in/out points-->Add segment(s)-->OK

3. Choose Direct Stream Copy-->OK

4. Select clips to convert-->click convert

thank you, GatorJoe. It seems that program will fit the bill.