Cybereason anti-ransomware program
Install the free anti ransomware program Cybereason
The program creates a number of hidden folders with an image, an excel file etc.
If encrypted or encrypted, the program will intervene.
Working with a synchronization tool such as Synctoy
should preferably be done from the administrator account.
If the files are moved to the D and anti-ransomware is installed, copying those hidden folders may be difficult.
Then you really need those administrator rights.