Don't you think it is annoying that Windows assigns drive letters automatically to certain drives such as the floppy disk drives A: and B:?
The A: drive letter is assigned even if no floppy disk drive is installed on the system. There is a way to reassign all drive keys in Windows by manipulating the Windows Registry which helps you get rid of the issue.
A word of advise before I'm going to explain how this is done. Do not try to change the assignment of the drive letter C: which has to stay the way it is. If you change it Windows will not boot anymore if it boots from that drive and you don't adjust the boot loader as well.
So, what you need to do is to open the Windows Registry by hitting Windows + R, typing regedit and pressing the enter-key afterwards. You may get an UAC prompt at this time which you need to accept.
Navigate to the following key: "Hkey_Local_Machine\System\MountedDevices". If you do not find any entries in the right window after clicking on MountedDevices you need to right-click the entry and select Permissions from the menu. The adminstrator needs full right to access the key, you can assign the rights temporarily as you may reset them afterwards to their initial values.
You do see a lot of DosDevices entries in that pane when you scroll down. Now, what you need to to is change the letters. Please note that I did not try to remove the entry for drive A: completely and cannot therefore tell you what is going to happen on your system if you try to do so.
You do change drive letters the following way:
This is a pretty good way to assign a different drive to A: which can be useful if you have an old program that only writes data to drive A: for instance. This is useful as well if you want to order your drives in a different order, which can be helpful if you have a lot of partitions on your system.
Advertising revenue is falling fast across the Internet, and independently-run sites like Ghacks are hit hardest by it. The advertising model in its current form is coming to an end, and we have to find other ways to continue operating this site.
We are committed to keeping our content free and independent, which means no paywalls, no sponsored posts, no annoying ad formats (video ads) or subscription fees.
If you like our content, and would like to help, please consider making a contribution:
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.