Can I Delete Dmg File After Installation
Can I delete 'installer packages'? By klonestar May 26, 2005 12:04 PM PDT. After downloading and installing a program can the 'installer package' then be deleted to clean up the HD space? OX App Installation. OX app installation instructions for Mac, Windows, and iPad are provided below. OX App Installation – Mac. After downloading is complete, find the “OX-Mac-v1.1.0.dmg” file in your downloads folder, then double-click the downloaded file to open the disk image. You can if you want, but unless you're very short of disk space(in which case you have more problems than that), it doesn't matter whether you do or not.
I downloaded software (Skype), installed it everything works fine. The only annoying thing is that the dmg image always appears after rebooting. I'm new to Mac OS X.
EDIT: It's exactly as described here http://www.tuaw.com/2007/05/02/mac-101-dmg-files-are-disk-images/ but it reappears after reboot.
Chealion3 Answers
The same thing happened to me shortly after I moved to a Mac. I made the same mistake you probably did: I ran Firefox from its .dmg file, and every time I ran it, the .dmg re-opened on my desktop. The way to install an application on a Mac (once you have downloaded it) is to:
- Open its .dmg
- Drag the application file inside it to your or the system's applications folder
- Drag the application's icon from the application folder (not from the .dmg) to the dock, if you want it there
- Right-click or cmd-click the .dmg file and eject it.
- Delete the .dmg file - it was just a shipping container.
For your currently sort-of-installed Skype, right click the Skype icon on the dock, select options, and uncheck 'Open at Login'. Drag the Skype icon off the dock (it goes poof! and disappears). Re-do the install as above. If you want it to start whenever you log in, use the dock icon again to select that option.
A few questions to try and figure out what is going on:
When you installed the Skype app, did you drag it to the
Applicationsfolder?Are you running Skype from the disk image, rather than from your hard drive?
When you say reappear, where does it reappear? As as
.dmgfile in theDownloadsfolder? As a mounted disk image in the disk area (i.e. top left-hand corner) of Finder?
I had a similar issue with a DMG file sitting in Places within my Finder. I couldn't seem to delete or remove the file - regardless of what I did. Same as the person above, when I right clicked on the item, it brought up the preferences for finder. If I double clicked on the item, it told me that it couldn't find the file.
I am assuming that somewhere along the line, I installed the software, somehow dragged the .dmg file into the places section and then had deleted / ejected the original DMG File -- leaving the file in my places.
After thinking about it a bit, I went searching for the original file on the net which I strangely couldn't find. It was some random installer for WebEx software that I think auto installed when I participated in a webex conference.
So, I tried to trick it. I renamed another .dmg file to the same name as the ghost file and then double clicked to open it. The .dmg file showed up in my 'devices' section -- actually with the correct .dmg info, not the renamed file.
HOWEVER, now when I right clicked on the ghost file, it gave me the option to remove the item from the sidebar -- which is what I wanted to do. I then ejected the .dmg file and problem solved.
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Whether you are an avid Mac programmer using a Windows PC, or you just found a DMG file on your Windows machine, it can be useful to know what it is and how to open it. Luckily it’s easy to open on Windows if you know how.
What Are DMG Files?
DMG files are macOS disk image files. They are much like ISO files—their Windows-based counterpart.
These disk images normally contain program installation files for macOS apps, but they can also be used to hold compressed files. If it’s an app written for macOS, you obviously won’t be able to install and run the app on Windows. But, you can still open them up and take a look.
You can’t open DMG files directly in Windows, though. For that, you’ll need a third-party tool.
Open DMG Files in Windows By Using 7-Zip or DMG Extractor
There are a lot of different tools you can use to extract DMG files in Windows. Our two favorites are 7-Zip and DMG Extractor. In our testing, we found a few DMG files that would open with one of those apps but not the other. However, we found no DMG files we couldn’t get open with one of those two apps.
We recommend starting with 7-Zip because the free version of DMG extractor has some limitations—the biggest of which is only being able to extract five files at a time. If 7-Zip cannot extract your DMG file, then you should try DMG Extractor and, optionally, decide whether it’s worth buying the professional version.
Open DMG Files with 7-Zip
7-Zip is a lightweight, but powerful compression tool that is free to download. In addition to extracting DMG files, you can use 7-Zip to extract most types of compressed files out there, including ZIP, CAB, ISO, RAR, and WIM, to name just few. It also lets you create your own compressed files in ZIP, WIM, 7z, and a few other formats.
After installing 7-Zip, you can simply double-click a DMG file to open it and browse its contents.
If you’d like to extract the files from the DMG so they’re easier to work with, right-click the DMG file, point to the “7-Zip” menu, and then choose one of the extraction options. Choose “Extract Files” to select a folder where the files are extracted, “Extract Here” to extract files to the same folder where the DMG file is, or “Extract to foldername” to create a new folder named after the DMG file and extract the files to that new folder.
The speed of the extraction depends on the size of the DMG file and the speed of your PC.
When the extraction is finished, you can browse the files in a regular File Explorer window.
You can view or edit the files using any of the regular File Explorer features or whatever apps you use.
Open DMG Files with DMG Extractor
DMG extractor provides another choice for extracting DMG files. The free version works well, but it does have some limitations:
- You cannot extract files bigger than 4 GB
- You cannot extract encrypted files
- You can only extract 5 files at a time, which can be a pain if you need to extract an entire DMG file.
If you need any of the features on that list, you’ll have to purchase the professional version ($9.95). For that reason, we highly recommend trying the 7-Zip solution we outlined in the previous section and resorting to DMG Extractor only if 7-Zip cannot open a particular file.
We’re going to use the free version for this tutorial, but aside from those limitations, the professional version works the same.
After installing DMG Extractor, all you have to do is double-click your DMG file to open it up. You can browse the files right in the DMG Extractor window if you just want to see what’s inside the DMG file.
If you need to extract the file, click the “Extract” button on the toolbar, and then choose one of the extraction options. You can extract all files to the desktop or a folder of your choosing, or you can extract only files you’ve selected.
Just remember that the free version only allows you to extract five files at a time.
That is essentially all you need to know when it comes to extracting the contents of DMG files to your Windows PC. If you do not want to download these programs, one other option is to follow our guide on how to convert DMG files to ISO’s. After that conversion is done, you can mount the ISO in Windows and access the files that way.
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