Hi Linda,
I am truly sorry for the rather lengthy delay. I had an answer all set for you but between health issues and doctor's appointments your answer got set on the back burner. Things are better today, so I will finally present an answer to your drive letter issue.
The problem I face in giving you an answer to your drive lettering issue comes from the age of your operating system. What I can say for certain is that, as you already know, Windows 2000 is quite old and will stop receiving support from Microsoft in July. This doesn't mean it will stop working but that it will stop receiving new updates from Microsoft Update. You might want to consider upgrading to Windows XP Service Pack 3. It might be possible that someone has a version of XP that they could donate to you.
Much of what I've written so far has been couched in generalities, mights and maybes. This is because finding exact information for Windows 2000 has proven to be difficult. Again, its age is the problem as it seems most of the sites I was able to find have either archived or deleted their Windows 2000 coverage. Nonetheless, I was able to find enough information that I believe the following will work for you.
The one thing I was not able to find was screen shots of the process I am about to describe to you. I don't use nor have I ever used Windows 2000 so you are going to have to use common sense, what you do know, and trial and error to work through the following process. The one thing I can say for sure is that you will not hurt system as long as you leave the C drive letter alone. This warning is only applicable to Windows 2000. This drive letter is extremely important to Windows 2000. Do not ever, ever, change this drive letter. You can safely change any other drive letter, just not the C drive letter. If you heed this warning your system will remain safe and usable. So remember that the C drive must always remain the C drive and your system will be just fine, just carefully follow the steps.
Step 1
Place the Flashies that you wish to be E and F in the corresponding USB ports (holes).
Step 2
Go to your Control Panel and click on Administrative Tools then click on Computer Management (there are other ways to get to Computer Management). This article describes Computer Management and has a screen shot that will help you. Finally click on Disk Management which you will find in the Storage section of Computer Management.
Step 3
You should now see something like the screen shot in this article. The lower right hand side of the Computer Management window is where we are going to be working. Each disk that you see corresponds to a disk in your system. Flashies are considered disks as are CDs and DVDs and several other devices. Notice that each disk has a number (disk 0, disk 1, ...) just as I mentioned in a previous post and might also have a letter (C:, D:, ...) and a label such as New Volume.
Step 4
Don't click anything yet but do scroll up and down to see all your "disks". Just take a break, have a cup of tea (or coffee, yuck!), look at this screen carefully and think about what has been posted to this point.
Step 5
Now that I'm, errrr, you are rested, it's time to do some work. Click in the white space beside disk 0, your C drive. Notice how the space suddenly has slashes through it. This helps you identify which disk (or disk partition) you are looking at and about to work with.
Step 6
Now click on the flashie that you wish to be identified as E and the same thing should happen. If it didn't, try clicking on the white part again. From here to the end, I am going to assume that hatching has appeared next to the flashie that you wish to be identified as E. If that has not happened STOP and get help from someone in person! If the hatching has appeared next to the flashie that you wish to be identified as E, you can proceed.
Step 6
Right click on the hatching. A pop up menu appears and it contains several options. Never click Format unless you mean it. If you click Format and proceed you will lose all the information contained on the disk. The option that you really want to work with is called something to the effect of Change Drive Letter and Paths.
Step 8
Click on Change Drive Letter and Paths. A new pop up appears that allows you Add, Change or Remove a drive letter. Click on Change to get another pop up that allows you to change the drive letter. It will have Enter a new drive letter or... on the first line. Make sure the radio button to the left of the words Assign the following drive letter is highlighted, then set the drive letter to Z by clicking on the little down arrow next to the letter that follows the words Assign the following drive letter and clicking on Z. Finally click the OK button then OK again (if needed). You should now be back at the Computer Management window where you began.
Step 9
Repeat steps 6, 7 and 8 for the flashie that you want identified as F except use a new drive letter of Y.
Step 10
Repeat steps 6, 7, and 8 for the disk actually using letter E except use a new drive letter of W.
Step 11
Repeat steps 6, 7, and 8 for the disk actually using letter F (if that letter is in use) except use a new drive letter of V.
Step 12
Repeat steps 6, 7 and 8 for the disk now identified as Z except use a new drive letter of E.
Step 13
Repeat steps 6, 7 and 8 for the disk now identified as Y except use a new drive letter of F.
Step 14
Repeat steps 6, 7 and 8 for the disk now identified as W except use a new drive letter of G.
Step 15
Repeats steps 6, 7 and 8 for the disk now identified as V (if it is in use) except use a new drive letter of H.
Step 16
Close the Computer Management screen.
That's it. Flashies E and F should now remain E and F unless you change them. There is a possibility that this might not always be the case, but at least you now know how to get things to be the way you want them.
One last thing you might want to do is set a label for each disk. This is easily done through Disk Management. Simply right click on a disk and select properties then type a short name in the little box that is the first thing you see on the General tab. It can be anything you want such as Everyday, Financial and so on, just as long as it is short. In fact, this might be easier than changing the drive letter.
What ever you decide to do, just be careful. You can do it easily and safely as long as you take your time. As always, if you have any questions be sure to ask and remember that there is no stupid question, only stupid answers. Good luck!!!
David