Windows 11 Back up to external drive using Windows 7

[RoMo5]

I get an error message "The system cannot find the file specified. (0x80070002)" The file it relates to is my Pictures file. Could this be because my pictures are uploaded to One Drive?
If so how do I transfer them to an external drive?
Thanks in anticipation of someone's help.

 

[ussnorway]

0x80070002

means the file is missing or not what was expected so there is an text file instead of a photo or just nothing

by default, onedrive is on your C but it could be locked... ime its much more likely this issue is the external drive dropping in and out