never had a problem either. Almost surely the culprit is some messed permission, possibly in the systemwide temp folder which 7zip uses if not instructed differently
I have this problem only 2-3 last insiders builds, helped - kill Smart Screen process in task manager before deleting files/folders.
@shhnedo 7-Zip doesn't support creation (as well as modification) of ISO/IMG files. Its better to use appropriate utility, like UltraISO/PowerISO.
7zip can open ISO but not save as ISO, maybe you're confused by the 7zip icon at ISO's when you associate ISO files with 7zip.
I know my way around computers and I am aware of the file extensions. And no, I haven't assigned 7-zip to open iso's by default, I just right-click and open the iso in the 7-zip file manager. Then I delete what I want to delete and simply close the 7-zip file manager. That's it, that's all i've been doing untill now.
Quite likely is it that You have no rights to edit this file. You must take ownership, ie get permission to change it. It is a daily problem in recent days, when people want delete or change files, but forget, that if these files are transported there from old system, then they don't have any permissions to change them. Usually have that permission trusted installers, system and administrator(s), but usually people have changed username, password, even the computer ID and new admistrator is not the adminatsrator for these old files. He/she is simple user who has only permission to see and open this file, nothing else.
I've played around with permissions enough. Besides, as i said, this started just recently. I've done countless windows installs and moved even more folders/files around without encountering this problem. Not even once. That's the thing, it happened just like that, without me doing/changing anything...
I give up, what part of 7zip can't modify iso's don't you get? Just do what Tito said, use a proper ISO tool to create/modify/save ISO's, like PowerISO or UltraISO.
I just created a .iso file with Ultraiso and tried to delete a file inside this .iso using 7-zip 2016-10-04 : the request is rejected. I ran the test on Windows 10 AU, Windows 7 sp1 and Windows XP SP3. Perhaps an earlier release of 7-zip is able to delete a file/folder in a .iso, but I doubt. The documentation states that iso is NOT a supported format for creation. But zip files can be created/modified.
Is my english that broken? Where have I ever claimed that 7-zip CAN CREATE/MODIFY/SAVE iso's??? I'll say it again, I know my way around computers, I know what installed 7-zip for and I know what it can and can't do. I simply said that until recently I could simply open an iso through 7-zip file manager and delete whatever I want, then just close the file manager and boom, job done - no errors, no problems. Whereas now I can't even do it with a simple .ZIP FILE, let alone an iso. I also said I'm not gonna try to "fix" something that's actually working as intended, so I'll just use PowerISO as I've done in the past. End of story. Now what part of all this don't YOU get?