Could you try moving the folder to your D:/ partition instead and see if it works? Windows is having issues writing to your disk. I'm curious if your other partitions will say the same thing even though it's the same disk hardware-wise.
Before we are going to try all kinds of things I want you to check something.
Try this :
1: Go to start
2: click run
3: type regedit and press enter
4: Navigate to this key : HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
In the right pane, double click: Shell
It should only read: Explorer.exe. Can you confirm this for me?
Edit :
Once you confirmed the above the following could solve your issue. When doing the below steps make sure you have administrator rights. Also if you have personally made a lot of system file changes the below will reset them:
1: Go to start
2: Type in cmd and press enter
3: This will open a command prompt. In the command prompt you type : sfc /scannow and press enter
4: This will check all your default system file values and see if any of them have been overwritten. If so it will exchange the files back to the default.
If the above does not solve your issue, or you do not want to reset your system files, let me know and I'll see if there's other ways to try and solve it.