Have you created a Win 10 install disk that you can boot up with ?
If you haven't then you can by using the Download tool now button in
https://www.microsoft.com/en-gb/software-download/windows10 but read the section on how to create bootable media.
You will need to change the boot order in the BIOS to boot from the DVD drive before the SSD/HDD - are you using a SSD or HDD ?
You can get into the BIOS by pressing and holding F2 throughout a Restart
Use the cursor keys to navigate to Boot then use F5 or F6 to move the DVD (ODD) drive to the top - insert the disk - press F10 to Exit and Save - confirm
Press any key when prompted to boot from CD/DVD.
Change/confirm the Time and currency format - Next then select Repair your computer
Select Troubleshoot - Command Prompt
Type bcdedit |find "osdevice" and press enter.
That is a Pipe symbol before find and is the upper case of \
Using whichever partition letter, enter chkdsk x: /r where x is the partition letter.
Make a note of what it reports, especially if it reports any KBs in bad sectors.
If it reports any bad sectors, then that will be the cause of the WR failing to run.
Disregard Error 50 as it would normally have created a Wininit entry in Event Viewer but as you are working outside of Windows, then it can't.
When that has completed, enter this command -
sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows
Note there is a space before each /
This will take a while to run but will compare and replace any corrupt files from the incorrupt source of the install disk.
Make a note of what that reports then enter exit to close the cmd window - remove the disk and then you can opt to continue with a normal boot or shutdown.
Let us know what those two cmds reported and if they have resolved the explorer problem.
