The usual cause with this kind of access issue is down to the way that Workgroup networking works. You need two sets of access rights to be present and set to allow the user to access files
You need to share the files on the system using the network options, but you also have the NTFS, [file access permissions], to allow the action you wish to allow. the normal way to achieve this is to create a set of identical users on both systems with the same password This in most system setups just be the main single user, but with shared installs can be more.
If you have two users each the main user of each system you need to add the other user to each of the systems eg. ...
system1 has user1, and system2 has user2 - to properly set up a workgroup network you need to add user2 to system1 & user1 to system2. you then need to set up that each user has the required access rights on the "other" system
Overly complicated for the average users - Yes, certainly, but was initially designed for small businesses.
Windows 7 has an alternative [now obsolete and not available in Windows 10 onwards, so limited to Win7 to Win7 networks], called Homegroup, which is setup on the first system and the second system is joined to the homegroup and the rest is managed by the system - may be an option if both your systems are Win7.
You can also make the workgroup system simpler by only using the Public folders for sharing, as these are by design setup to share with all users.
There are a number of more detailed Tutorials here in the tutorial section of the forums
https://www.sevenforums.com/gtsearc...ums.com/usercp.php&ref=&ss=27912j193096476j23
