XeroJager

Following up on this, I've reinstalled Windows 10 using the 1607 [July 2016] Build ISO on the site you suggested. It went ahead and ran all of it's updates so it's using the current version of Windows 10. I've gone through and made all my settings the same in my games/windows. WPS 6/11 1920x1080 at 100% scale I went through and tested the mouse with these stipulations: USB Drivers not updated - Same problem as before. USB Drivers updated - Same problem as before. Used both Deathadder and Logitech M100 - Same problem as before, showing closer to 900 and 1200 DPI respectively, rather than 800 and 1000. Used both mice on different USB ports, USB 2 and 3 alike - Same problem as before. The only thing I haven't done is reinstall Razer Synapse or apply the MarkC fix, of which had no effect on the situation anyway. -J

Can confirm i'm running newest version. I'd like to see if I can find any other discrepancies/solutions before I go through with another reformat/reinstall. I know I can install another Win10 ISO without clearing my files, but I don't want to take the risk of having the same issue arise on the new install. -J

I used the Windows Media Creation Tool to make a bootable drive to install windows. I would assume it's the latest ISO they have. Not 100% sure though. Other than the mouse issue this installation of Win10 looks pretty much standard. It's been updated to the latest build as well. Any way to check which version it was installed with? -J

Can confirm that my previous installation of Windows was also Windows 10. Can also confirm that by using the DPI Analyzer on this site, i'm coming up with the same results as before. -J

Hi guys, I'm having a strange issue with a fresh install of Windows 10 that I applied to my PC last weekend (May 27th) where my current setup is yielding a shorter Inch/360 than it was previously. Here's what my settings were on my previous installation of Windows 10: Core i7 4790K GTX 1070 Razer Deathadder Elite (Previously used Deathadder Chroma) Used settings akin to 10.22-10.25inch/360. Games mostly played: Quake 1-3 (Including CPM): Sensitivity 2.0 Reflex: Sensitivity 7.65 NO ingame accel anywhere. Windows "enhanced pointer" mouse accel off WPS 6/11 Windows scaling set at 100% @ 1920x1080 --------------------- The new installation of windows uses the exact same setup, except now i'm getting closer to 9.5inch/360 than my usual measurement. All previous windows installation calculations were done using the sensitivity calculator on this website, and were 1:1 up until the new installation of windows. The actions i've done so far: Run my Deathadder elite clean, no software on/installed. Run my Deathadder elite with Razer Synapse software on Used a different mouse entirely: Cheap logitech M100 I got from work. Cleaned both sensors for good measure. With both mice, ran the Enotus mouse test, found that my Deathadder, which was set to 800 DPI, was running closer to 900+, and the M100, listed as 1000DPI, ran closer to 1200+. Ran the MarkC Fix for 100% scale, which is what my PC was set to. No effect. Reverted action afterwards. Installed/Uninstalled Razer Synapse multiple times. No effect. Changed mouse polling rate from 1000hz, 500hz, and 125hz. No effect. Uninstalled Windows Game Bar through Windows Powershell. Made sure it was off in registry. No effect. Double checked to make sure Windows enhanced pointer was off, it was. Double checked to see if Windows was set to 6/11 for pointer speed. It was. Installed newest USB Drivers for my motherboard. Physically measured mouse distance in multiple games a 360 turnaround from a reference point, got consistent measurements of 9.5in/360 Used both mice on another PC to confirm it wasn't the mice hardware. Can confirm mice are fine. ------------------------- I'm pretty stumped, and figured this would be the correct place to ask. Open to any and all suggestions at this point. Thank you, -J