I am running low on disk space. I was wondering if maybe there was a way to get a list of everything installed on my computer and then maybe getting some help deciding what I do and don't need. I have removed some stuff though add/remove programs. I guess I would like some help with stuff that I don't necessarily know what it is or what it does.

Remember, Google is your friend. Plug whatever you want to know about into Google and see what it says. If still unsure, post it here. If still unsure, leave it!

Going through Add and Remove programs, uninstalling programs you installed that you no longer need or use is a great start. I also recommend purging the hard drives of clutter with Windows Vista Disk Cleanup, ATF Cleaner or CCleaner. If using CCleaner, uncheck the option to install the Yahoo toolbar during installation. Before first use, go to Options > Settings > Advanced and ensure Only delete files in Windows Temp folders older than 24 hours is unchecked. Know your site credentials (user names and passwords) for sites you frequent before cleaning; you may have to login again at next visit.

How much free space do you have?

Before doing disk cleanup I think I had 9gb of 136gb free. Now I have 13gb free. I feel better now that it is blue and not in the red.

That's still not a lot. I would try to free up some more - another 10Gb would be good.

I know. I'm still gonna work on getting other stuff deleted.

That would be good, but most likely a temporary solution, unless you uninstall significant applications that you never use. So, you may consider adding a second drive and moving some of your applications off of C drive and on to the new drive for long term/permanent solution.

Running Windows Defragger will likely free up a little, but more importantly, it will consolidate most of your free space. Right now, with little free space and likely fragmented files, your Page File may be struggling to be effective, and that can significantly impact performance. Always run your disk cleaner before defragging to rid the system of temp files (they pile up quickly every time you browse the Internet). It is counterproductive to defrag with potentially 1000s of tiny temp files on the disk (this is why I never use and recommend against real-time defragging).

Some may suggest 3rd party defraggers, such as JKDefrag or Defraggler from the makers of CCleaner. While these are very effective, they require you download and install their files. When you are critically low on disk space, it makes little sense to me to take up more space with an alternative defragger when Windows has an effective defragger built in. While these alternatives may be more efficient at defragging, since fragmentation begins all over again as soon as you use your computer again, IMO, the built in is perfectly adequate.