Mac running slow after snow leopard upgrade

There are a few limitations. First off, you can only emulate macOS on hardware running macOS. Presumably Apple will continue allowing future versions of macOS to run in virtualization on Mac hardware. You can even set the virtualization software to open in a full-screen space on your Mac, so you can swipe on a trackpad from High Sierra to Mavericks and back.

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I have some serious doubts that anyone is performing major productivity tasks on the classic Mac OS, but there are several options for emulating those old versions. MinixMac is a basic emulator of very old macs, and I was able to get lots of my Mac OS 9 software up and running in the SheepShaver emulator.

A more likely use case than writing your next novel in WriteNow on System 6. I have a bunch of stuff trapped in old database files that I was able to access last week for the first time in 15 years. Beyond eBay, of course, consider just keeping your old Macs around after you buy new Macs.

Old Macs that seem dog slow on the current version of macOS will seem much faster when their hard drives are wiped and replaced with an older version of the operating system. Which it is, in a way. But after a few years, what was old and outmoded becomes historic, maybe even classic. Internet communities that build emulators of old software and hardware are vital to allowing the people of today and tomorrow to understand what computers and video-game consoles were like in the early days.

I'm not an expert with laptops, but I've built tons of computers, done lots of computer repair, etc. I haven't had any big problems with the HDD, just intermittent program lockups and the occasional crashes from Chrome or Preview. I just had the same problem on an old 27" iMac. Lots of little glitches and bumps and permissions issues and sloooowdowns and endless pinwheels, and nothing but nothing seemed to help.

I was doing dire things with Disk Util and third party apps and the command line, and it only got incrementally worse and worse. I spent months trying to fix it before saying "screw it," and nuked it from orbit. I wound up having to backup my data to an external drive Time Machine won't help you here, and may eat your backup if you have it on an attached disk rather than a time capsule , booting to the restore screen command-r on restart , erasing the main HD completely, reformatting, and installing fresh.

An OS re-install is not enough, you gotta clean up the disk. This means re-installing all of your apps, and migrating your data back in by hand, or using a third party restore. You'll have to reconfigure all of your prefs by hand, too. Once that was done, it was a new machine, all of the applications are right zippy and rock-solid stable. Better than Lion, at anyrate. I believe there was a bug in a later rev of Lion that introduced data corruption, which was worsened by something on Mountain Lion, tho I can prove nothing.

I haven't done a reformat in a couple years. I can back up my documents and music and such and give that a whirl and see if it helps. I haven't messed around much with Snow Leopard since I upgraded long ago, but I do remember how much I preferred Spaces. There isn't much about ML that I've found to be that essential, with the exception of the Full Screen mode which is lovely. Not particularly. Just pull up the appropriate guide at iFixit and make sure you have the right tools.

I read this article last year after noticing serious slowdown similar to what you're describing on my Mac from ish. I cleaned up the desktop as they suggested, rebooted and the difference was magical.

Give it a shot, at least. Oh, there's nothing on my desktop. There's never anything on my desktop. Icons on the desktop gross me out. The "lockups" and spinning beach ball point to that.


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Chrome eats up a lot of memory, especially if you keep lots of tabs open, or sites with infinite scrolling e. Tumblr , or flash Youtube, a lot of others , and even more if you don't use AdBlock to block all the little flash ads and such. The lockups and waiting and spinning beach ball are symptoms of having to wait for virtual memory to swap around - writing something not-recently-used in RAM to the hard drive, then reading the memory for the thing you're trying to access back into RAM from the hard disk.

Do what others suggest here with regards to internal dust and redoing your OS installation, but also consider upgrading your RAM to at least 4 GB. It started to slow waaaay down. One of my RAM slots had gone bad. Worth a look.

I actually found it to be a little snappier than Snow Leopard, but Snow Leopard is fast becoming the System 6. Lion and Mountain Lion are in some ways steps backward, but of the two, Mountain Lion is the OS Apple should have released to begin with.


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  • As an experiment, you might try creating a new user and log in as that new user. That way you may eliminate some sources of slowdown tied to your existing user account plugins, desktop, all sorts of other things. My computer is nearly unusable. If necessary I'll go to the Apple store but it just left the warranty period and I'm convinced its' simply something software related, maybe something that's hanging it. Any ideas of what could be wrong or how to troubleshoot to find out?

    Thank you in advance for your help. Sorry to say, but everything seems to be pointing to a bum hard drive. It hasn't failed Yet, but it certainly sounds like its on its way out. Pop your This should boot into a diagnostic program. It'll run some memory tests, make sure that's good, and it should at least run a SMART test on your hard drive. That's a built-in diagnostic all hard drives have. My money is on the hard drive going out.

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    I'd back up anything you don't want to lose. If I'm wrong, it's still a good idea to have a recent backup of important files. If you have an external hard drive with a bootable OS on it always a good idea for diagnostic purposes you can boot from that. It SHOULD be slower than your internal drive, but if it's considerably faster, it's one more nail in the coffin of your hard drive. Good news overall, is that hard drives are generally cheap, and you shouldn't have a problem finding a take apart guide online if you need one. I did some work this evening. For some reason I was unable to get into safe mode and I pressed and held the Shift key hoping to go into safe mode.

    I ran the extensive hardware test and it found no errors. Yet I have even pulled the power cord and battery and did a restart and am having the same problem.

    http://staging.allhyipdata.com/32-zithromax-and.php

    Snow Leopard Hanging-Running VERY SLOW

    I even had a few times it would not even boot. It would get to the grey apple with the progress indicator below and would be like that for mins, never going further so I may have even deeper issues. Fortunately I had been doing hard drive backups using Super Duper so I connected that drive and did a boot from it. I was excited since it seemed to boot at first and then was very slow and appeared to freeze as the icons were appearing on the desktop. I have only tried this once but since that's the case I didn't think it was the internal hard drive that was the issue.

    Then I decided to hook the external back up drive to the other MBP our family has. I then booted up and was shocked how well it ran. What would this mean? I originally though after it didn't work on the MBP that maybe it was indeed a problem with the internal hard drive and there were likely corrupted files or so that then got backed up onto this backup drive when I did the last backup a couple weeks ago. Yet it works fine on the other MBP. I actually did the hardware test after I attempted the boot from the hard drive on the MBP so can try another boot later in case something just went wrong that time but since it boots fine on another MBP I tend to think the hard drive is not the issue.

    The good news is maybe I won't have to do a complete clean install of Snow Leopard and then all data, etc. Could it be some type of hardware problem with the MBP? The hardware test found nothing but could it be a memory problem or would it have caught a memory problem or a hard drive problem?

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    I had to have the Apple Store put a new logic board in this computer about 6 months ago. It was a video problem and the computer had no video at all. Would a more serious problem relating to the logic board or something on it cause a problem like this? Once the hardware test is done I will try to boot again from this hard drive. I was ready to check into replacing through warranty the new hard drive I put in but I'm not sure if that is the problem now.

    Mac became slower after upgrade, how to fix?

    I purchased the AppleCare for 2 additional years but it just expired in April.