But there's no good reason to do this, and it carries some risks e. It also means you'll spend hours reinstalling the OS, and then all your apps, and then reconfiguring everything, and it's all just wasted effort. IF your Mac is doing something weird, you can almost always solve the problem directly. Are there leftover bits running that shouldn't be? You can just stop them and remove them. Has a bad crash made the OS itself behave badly?
The Mac rescue process includes an OS reinstall that does its work without wiping out your apps, your data, or your configuration options. This is horrible advice and completely magical thinking. There's no reason to do it unless you're having a small class of very serious problems like, creeping corruption on a drive. If you think there's a real difference and not some perception of change, then you really need to explain what, exactly, a clean install accomplishes that doesn't happen otherwise.
Be specific. What you describe absolutely accomplishes things on Windows, and the near-monopoly they enjoy has led a lot of people including, apparently, you to believe that ALL computers benefit from this behavior, but it's just not true. There's no Registry to clean. Apps don't drop DLLs into the system folders on the Mac. Installation is dead simple and drag-and-drop, which is one of the key advantages to the OSX way of doing things.
Even more rarely than that are apps that impose some kind of agent that needs to be removed with the vendor's uninstaller, or by someone who knows what they're doing, or as a last resort by some 3rd party tool. I mean, good lord. Horrible advice and magical thinking. I will assume that you meant it in a most positive and constructive manner.
I will also assume that you have measured the performance of your own Mac Pro before and after a clean install of the OS? My background is similar to yours and you are certainly welcome to your own opinion. However, I speak from my own first hand experience and stand my my recommendation that one do a clean install of the OS, particularly as you migrate between versions. As well as doing development on my machine most development done in VMware fusion partitions , I also do both video and audio editing.
Having moved up to edit 4K video, I am very aware of the performance, or at times the lack thereof, of my machines. I agree with your general premise that the Mac OS does a better job of maintaining itself over time than windows. However, it is NOT perfect. The general theme of this thread was the use of various applications to "clean" the Mac. While I do myself make use of EtreCheck and Onyx, I don't in generally prescribe to the notion that the many other Apps available do much good, and if you are not aware of what you are doing can do more harm than good.
It is disingenuous to say that Mac's do have not have a system registry or DLLs etc They have Kext files Kernal extensions which are the Mac equivalent of driver files, as well as the OS Keychain for storing secure information.
Welcome to Reddit,
There are other examples of files which get modified or left behind, but you know this because you are a power user and they are "inert". I don't want you to be insulted, but I can't help but note that you've ignored my question.
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What, specifically, does the clean install resolve that cannot be more easily resolved some other way? The onus is on you. If you can't say what your process does that can't be done short of "nuke it from orbit," then you really shouldn't be advising people to go this route. It's actually not. All systems have methods to manage app settings, metadata, and code libraries; the difference here is how those solutions are implemented. The Registry is about app settings and metadata, but it's a database that is pretty inscrutable to most people, and is consequently hard to manage.
The approach to app installation and removal under Windows discourages good management over time, so it gets bigger and bigger. As it grows, performance suffers -- the that performance problem extends to virtually every aspect of the system, because the Registry is foundational. This is why Windows users generally just throw up their hands and reinstall, because there's no easy or good way to clean it up.
They don't get loaded or touched unless the app reaches for them, so as long as your disk isn't full they're not hurting you even if you quit using the app years ago. Is the distinction more clear to you now? Do you understand why the Registry has sustainability problems not present in how OS X handles the same task? Yes, there are code libraries in every system. The difference between the Mac and Windows, though, is how they're managed, especially when applications are removed.
Chase that down if you want, but odds are the average user's unculled Downloads folder wastes more space. You can't just drag a folder to C: This is another big part of Windows long-term stability and performance problem, and can only really be resolved by wiping and reinstalling. Another aspect of this is how Windows handles its own updates over time.
There are folders under C: No, I'm not kidding. It's amazing; I'm sure the only reason they haven't fixed this is because corporate customers are working from images that can be deployed quickly, but it's still bizarre. And, needless to say, the Mac doesn't have this problem, either. Kexts aren't exactly or only drivers, but it's worth noting that drivers in general are typically less of an issue on the Mac, because the universe of hardware is so much smaller. Kexts get used by some complex apps -- you mention Fusion, which is a good example.
Failing that, find someone who can do it for you, because it's not hard. As a distant 3rd choice, maybe look into an app cleaner tool. For example, I just checked via terminal, and my rMBP has only one non-com. It's for LittleSnitch which is great, btw; look into it if you want to know which of your apps is phone home. My backup machine, which was my daily driver until a year or two ago, still runs Fusion for me, so it's got a few VMWare kexts plus one for a wireless adapter I used for a while YEARS ago -- but that's all, and it's pretty corner-case stuff.
Your keychain is user data in your home folder, and doesn't really play a role in system perf. I wonder why you mentioned it? Their only long-term cost is disk space, but they're also typically tiny, so there's no point in worrying about them. Kernel extensions on the Mac may serve a variety of purposes, but third-party kexts are somewhat unlikely to be troublesome, and are only rarely deployed for most users.
They can also be easily managed using vendor tools or, in a pinch, command line tools that ship with OSX, so a kext problem absolutely doesn't justify a wipe-and-reinstall. Code libraries on the Mac take different forms than Windows DLLs, but the bigger difference is how they're managed and where they live.
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Because app installation on the Mac is simpler, and confines binaries to the Applications folder, disused apps can be removed by dragging them to the trash. So, I ask you again: What, specifically, does a wipe-and-reinstall solve that cannot be more easily and quickly solved some other way? I already provided you with my opinion and the facts upon which I based them. Sorry you don't deem them to be sufficient sarcasm, I'm not all that sorry.
The short answer for my recommendation is simple, so hopefully you can understand You say "horrible advice", but other than the time it takes to do a clean install there are Zero, zilch, nada downsides. On the other hand, if as you seem to be suggesting, a user decides to take it upon himself to start digging through the guts of the Mac OS to "clean" up the system for performance,.
I'm getting the idea you don't even read my posts, since I didn't actually suggest anyone do such a thing. Plists and leftover binaries are inert on Macs. It's only worth looking into ANY of this if you have some problem that can be traced to something leftover which is really only going to be some kind of agent or a kext , and such problems are very, very rare. This is just sloppy. It's absolutely unsurprising at this point that a new version of OSX would outperform its predecessor, and this has been especially true of the "incremental" version updates, like Sierra to High Sierra, that focus mostly on internals.
But there's absolutely nothing about this paragraph to suggest that your gains were because of your wipe-and-reinstall. The way to do this test would be to do your Geekbench tests on your Sierra machine first, then upgrade to High Sierra, and then run Geekbench again. Now you see what the gain was between S and HS-Upgraded. Then, wipe the machine and install High Sierra from scratch, and run the Geekbench tests a third time to get results we'll call HS-Clean. I'm still laughing at this: Obviously it was the erasure that made me faster!
You sir need upvotes, take one of mine. I cant tell you the amount of time I have wasted removing "crap" off peoples machines cause they thought it would "speed it up". The ratio of what it cleans up vs what is slows down by installing it's own crap is not in favor of those apps. Think of it this way: Give me access to you home and I will clean it for free. Just wait until you get the customer that's upset you removed MacKeeper for them. That's a fun time.
That shit consistently finds tons of crap on my mac that doesn't need to be there. It's amazing.
PSA: You don't need a Mac cleaner, and you never did. : mac
I wonder what stuff it's finding "consistently" that you don't need. What process on your Mac is throwing off these useless files all the time? The app is free though, is it not? It is if you know what it does and how to use it. This was one of the worst hackjob tools and their forums were littered with people who just shot down their Mac. So the dev removed options step by step. It's also removing stuff like caches just like CleanMyMac.
This one is the real MVP: Yes, there may be some legitimate apps out there that actually do work, my point is that it is very hard for the average user to know which is good and which isn't. If you are a user who can differentiate between a good 'cleaner app' and a bad one, then you don't need it in the first place.
You know what to do to maintain your system. If you were smart enough to find an app to save time, rather than scare you into 'upgrading to pro' because of all the problems it supposedly found, then this post wasn't for you. Are you telling me that there isn't charlatan apps out there that take advantage of users who aren't tech savvy like ourselves?
I don't trust Mac cleaners either, they've always come off as real sketch in my book. However, something I do use is this tiny piece of software called AppTrap 1. It's free and it integrates in your system preferences. Every time you delete an app, it'll automatically ask you if you also want to delete the associated preference files as well. That's really helped me get rid of useless pesky files I wouldn't necessarily know where to find otherwise and it doesn't make me feel like I'm using a Mac cleaner.
What you might want to add, though, is that pretty much everyone should buy and use some kind of space analysis tool. I like SpaceGremlin , but there are several options. I have banner ads popping up all over most web pages I open - the ads are from "mycouponize".
These ads cover web page script and they cannot be removed. I have spent hours online trying to find a solution to eliminate these ads malware??? Please offer some insight and guidance as to how I can remove this problem from my Mac. I greatly appreciate everyone's knowledge and efforts to assist me. More Less. Communities Contact Support.
Sign in. Browse Search. Ask a question. User profile for user: Mac OS X Speciality level out of ten: Helpful answers Drop Down menu. These Cleaner applications may clean too much and create problems. View answer in context. Loading page content. What junk? Reply Helpful Thread reply - more options Link to this Post. Stay away from cleaning programs. Linc Davis Linc Davis. Notebooks Speciality level out of ten: Leopardus Leopardus.
Desktops Speciality level out of ten: Best part of all They are all free! Csound1 Csound1. Cleaner is my favorite Mac cleaner app. Yes it's free So, you get less than you pay for. MFcentreduqc MFcentreduqc. Old Toad Old Toad. But what do these tools do, exactly? And should you use them? MacKeeper does a huge amount of things. There are Internet security anti-virus and anti-theft features. The real question we need to ask ourselves about MacKeeper is whether what it does is actually valuable.
This is the same trick used by many PC cleaning programs on Windows. Mac OS X also does some automatic deletion of temporary files in the background. Sure, there is Mac malware out there, but your Mac is fairly secure as long as you follow a few simple rules. Whether Java is allowing over , Macs to be infected or Oracle is Read More.