hello, when i try to copy or write on flash disk or dvd or cd it's give me access denied, i try to log in with administrator and same problem happen. so whats the problem? thanks.

What file system do you use in external device? NTFS may need permission setting, FAT(32) not. Rgds Milos

hello, its on all flash disk or cd or dvd . i think that there is something changed in system because it was working fine. thanks.

Hi, Thanks for the reply. However, is there any related error in Event Viewer? Based on my knowledge, it can be caused by a certain third-party application. Therefore, have you tried Clean Boot Mode? Also, please try to temporary disable your security applications and see how it works or test the issue again in Safe Mode. Hope this helps. Jeremy Wu TechNet Community Support

Hi, Please boot into Clean Boot Mode and see how it works. Also, you can perform a system restore and test the issue again. Hope this helps. Jeremy Wu TechNet Community Support

hell, i tried system restore but noting changed, thanks.

Hi, Thanks for the reply. However, is there any related error in Event Viewer? Based on my knowledge, it can be caused by a certain third-party application. Therefore, have you tried Clean Boot Mode? Also, please try to temporary disable your security applications and see how it works or test the issue again in Safe Mode. Hope this helps. Jeremy Wu TechNet Community Support