Answer:
Depending on what operating system you have my best choice would be D since on some folders you can share permissions with other people. It really depends on what computer you're talking about.
Answer:
try checking your internet or reset your computer if that still dosnt work try putting all your stuff on an USB stick and then after you did that factory data reset your computer and that should work but before you reset your computer take it into a computer specialist
Explanation:
