[S3xySmurf]

MBRFilter is a driver which will lock your MBR to read only which protects you from MBR rootkits and any other malware which may modify the MBR.

This driver will prevent writes to sector 0 on all drives. This can cause an
issue when initializing a new disk in the Disk Management application. Hit
'Cancel' when asks you to write to the MBR/GPT and it should work as expected.
Alternatively, if OK was clicked, then quitting and restarting the application will allow partitoning/formatting.

https://github.com/Cisco-Talos/MBRFilter