Hi,
Thank you for posting in the Microsoft Communities.
Based on the issue description, it appears that you’re unable to edit an xml file.
Please provide us the answers to the following questions to help you troubleshoot the issue better.
1.
Does the issue occur on all the files?
2.
What is the location of the file that you are trying to edit/save?
3.
Were there any recent changes made to the computer prior to the issue?
Please go ahead and follow the methods mentioned and later update us on the status of the issue.
Try to take the Ownership of the file and check if the same issue occurs.
To apply permissions to a file or folder:
a. Right-click the file or folder and then click
Properties.
b. Click the
Security tab and then click Edit.
c. Do one of the following:
· To set permissions for a user that is not listed under
Group or user names, click Add, type the name of the user or group, click
OK, select the permissions, and then click OK.
· To change or remove permissions from an existing group or user, click the name of the group
or user, select the permissions, and then click OK.
For further reference check the article mentioned below:
What to know before applying permissions to a file or folder:
http://windows.microsoft.com/en-US/windows-vista/Troubleshoot-access-denied-when-opening-files-or-folders
“For Windows related issue or anything related to Windows operating system”
feel free to contact us or let us know and we will be glad to help.