Spoiler Bear with me, my explanation is a bit... long-winded (I'm also new here ) I recently clean installed Windows 10 Enterprise LTSB and, while it is quite light on RAM (due to the lack of MS apps (read:bloatware )), the blinding white theme across the OS has nearly killed my eyes. After too much searching, I have only found partial solutions to my initial problem (see below). I have not managed to change this which, even after changing the brightness setting of my PC to 0%, still annoys me to the point where it hurts to look at my screen. I was hoping someone could provide a solution by editing the registry or otherwise (NOT via third-party apps and preferably neither via using the High Contrast theme) to change this. Partial Solutions --------------- 1. Enabling Dark Theme Go to Settings > Personalisation > Colours > Choose your app mode Or use the registry key http ://imgur.com/6ZFlfRR 2. High Contrast Theme I created a high contrast theme to see if changing the background worked and, well... http ://imgur.com/Rcwhols It not only looks disgusting, but the body of the File Explorer didn't change colour (as noted above) 3. Change the corresponding line in the Theme File to change BG color I don't remember very well how I did it, but I know for sure that the values indicated in the screenshot below with the "; <<< Changed" were manual edits that (probably) changed the background colour of most programs that I use BUT NOT the stupid File Explorer http ://imgur.com/fXtxTKa http ://imgur.com/RlwTOuB As above, both Rufus, VLC and the sound thingy (best technical term yet ) have a slight grey background colour, but File Explorer still has that horrible white colour. 4. Registry edits (None of these actually worked) I then attempted to use the following keys and values in some places in the registry, only to find out that none of these worked for me: Code: Key:Value pairs as follows: ColorHorizontalBarBackground - ffdcdcdc ColorNavigationPaneBackground - ffdcdcdc ColorToolbarBackground - ffdcdcdc ColorVerticalBarBackground - ffdcdcdc CompatibleViewBackgroundColor - 00b4b4b4 CompatibleViewFocusedBackgroundColor - 00c8c8c8 Note: the values above are in the format ABGR, where A is alpha, B is blue, G is green and R is red. So, long story short, I haven't been able to find a solution for this and was hoping someone could help. EDIT: Just noticed the attachments don't work, will fix it now. EDIT 2: Fixed. Spoiler P.S.: I'm currently compiling a list of ALL registry tweaks posted in this thread: http s://forums.mydigitallife.net/threads/62516-Windows-10-Tweaks-amp-Fixes Plus a few that I found from other sources. The following is a 'bonus' question for people who know this kind of stuff: Should I post the completed list in the same thread or make a new one?