step1: DOS Command (Administrator Mode)
step 2: DISKPART
SEL DISK 0
SEL PART 1
( ESP Part on your disk 0 part 1,if not ,change your disk No. and you Part No.)
ASS letter=x
exit
Step 3: Use XYplorer (Administrator Mode )open X: (youe ESP part)
enjoy
Notice
1.Must use Administrator Mode (Mouse right click to use administrator mode to run application)
2.dont use explorer of win10 to open X:, win10 will refuse top access system partition ,use other file manager application such as xyplorer to open it