Network Share Files Open as Read-Only

We have a client who we added 4 new domain computers to over the weekend (they had an existing 6 on the domain) to an existing domain control virtual machine running Windows 2012 Standard R2. Ever since the users started working on Monday the files on the server and network shares are opening as "Read-Only". We've checked the shares and they are set to Full Access, we've checked subfolders and they have full access and aren't locked for read only. We have checked for files being open on different workstations causing the issue and all files are closed. This issue did not exist before adding these users and the issue is being experienced by all users (all on Windows 10 pro), those who were on the domain before as well as new users.
Henry StarcherConsultantAsked:
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Tom CieslikIT EngineerCommented:
If you have not very complicated multi-leveled share I would try to remove share from folder and re-create again.
Henry StarcherConsultantAuthor Commented:
We recreated the share and are still experiencing the problem. The interesting thing is, the client said they noticed it on ALL files on all shares, however when we got in to test we only noticed it on office files. All of the files are being blocked, see picture below:
1.PNGWe can unblock them on the server itself, but it still opens as read only on all the workstations.
Tom CieslikIT EngineerCommented:
Open CMD as administrator on server
navigate to share folder and run ATTRIB command

for example if share folder has name share1 on disk D

cd share1
attrib -R -H /S /D
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Henry StarcherConsultantAuthor Commented:
I just ran the ATTRIB. It does unblock the files on the server but all the workstations are still opening the files in read-only mode, even after reboots.
Tom CieslikIT EngineerCommented:
I think there is something wrong with your right propagation on this folder.
For test only create new folder, copy one or two files, make this folder as share, give all users full rights and test from network if files are still Read Only
Henry StarcherConsultantAuthor Commented:
We actually did that last night too and are having the same issue.
Tom CieslikIT EngineerCommented:
If you copy few files to local drive and run attrib command to check attrib, what can you see ?
Henry StarcherConsultantAuthor Commented:
For clarification, do you mean the C drive local disk on the server itself or on one of the workstations?
Tom CieslikIT EngineerCommented:
Check both locations
Local workstation C drive and local server C drive

run Attrib with no parameters inside this folder after you'll copy some files.
This will give you some clarification.

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Henry StarcherConsultantAuthor Commented:
Tom, we found the problem. For some reason, on the root share and all shared folders, even when giving full permissions when creating the share, the User group on the domain wasn't given modify/read/write permissions. Once we changed that, everything is good!

Thanks for your pointers which lead to the solution!
Tom CieslikIT EngineerCommented:
You are very welcome. I'm glad you've resolved your issue.
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Windows Server 2012

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