Formatting my HD very slow after Mountain Lion crash

Hello everyone, I downloaded Mountain Lion and everything was great. Suddenly, all my apps crashed at the same time. I couldn't even Force Quit so I decided to turn the mac off by pressing the button. After that, when I turned it on it never started the OS, what I had was the Apple Logo and a spinning icon.
I backed up some files I needed into another computer via Firewire (those files were very very slow when copied, like for 600 MB 2 hours).
Now I am trying to erase the disk so I can do a Clean Install of ML but it is taking forever. I am afraid it's a HD issue. I read this problem was caused by Sophos antivirus so that makes a little bit happier.
Is it normal that it takes so long to erase the disk? It has been like for 15 minutes.
Thanks in advance for your help guys.

It depends on what options you chose for erase. If you chose any kind of overwrite 15 minutes may not be unreasonable (certainly no on a 7-pass overwrite, but even on a single pass overwrite 15 minutes could be used up depending on the size of your disk and how full it was).
From your description, I have to say I'd suspect a HD failure rather than Sophos. Still, if you're wiping the disk we'll never know till you try to reinstall and see how you get on. If you choose to migrate from a backup, you'll have to start up in Safe Mode (hold down the shift key while powering on) to make sure Sophos gets bypassed. Actually, try 'shift-command-v' while you power on, which will show you the log as it boots up. You might get some clue as to where its hanging, if it hangs.

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MacBook Pro is VERY slow after Mountain Lion upgrade

Hello folks, I have a MacBook Pro that was running very well before I upgraded to Mountain Lion...since then it runs worse than a Windows machine.
The configuration is as follows:
Model Name:          MacBook Pro
Model Identifier:          MacBookPro8,3
Processor Name:          Intel Core i7
Processor Speed:          2.2 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          6 MB
Memory:          8 GB
Boot ROM Version:          MBP81.0047.B27
SMC Version (system):          1.70f5
Serial Number (system):          C0xxxxxxF92
Hardware UUID:          5BCBC5E9-E531-55F0-A712-B40886C7B45F
Sudden Motion Sensor:
State:          Enabled
As stated, I have 8 GB of ram, under system memory I have the following info:
Free: 863 MB
Wired: 1.28 GB
Active: 3.60 GB
Inactive 2.27 GB
Used 7.15 GB
VM Size 306.76 GB
Page Ins 1.22 GB
Page Out 745.4 MB
Swap Used 2.12 GB
Disk usage is:
Space Utilized 454.49 GB
Space Free 294.8 GB
I have rebooted on many occasions and it is still slow.
Any ideas as to what could be going on?
John
<Edited By Host>

Regardless of whether you think you need it, uninstall it and test to see if the slowness problem is solved.
If it isn't put it back if you must, but there's no point trying to look for another cause till you've eliminated this one. You have a huge amount swaps which is what is causing your slowdown. 90% chance that's your AV software doing that.

Since Mountain Lion Upgrade is my Internet connection very slow, Since Mountain Lion Upgrade is my Internet connection very slow

Why is Safari so slow after Mountain Lion upgrade?

I have a home Optimum wifi network with Boost connecting to an Airport, with a second Airport extending, and an Airport Express extending. I have a MacBook Pro, last year's model, two iMacs, a year old each, and an older iMac. (If necessary I can get all the models etc, but I just want to express the problem). The two new iMacs and MBP are running Mountain Lion. The older Lion.
Since upgrading to ML my connection speed both over the wifi and directly connecting to the router has dropped from 30-50 down and 5 up to between 1-4 down and 4 up. I have had the cable folks here to test lines. We've swapped out the modem with a new one. I bought a new netgear N600. Everything led to the same result.
Here's the odd part. When restarting the modem and plugging it directly into the powerbook, initial tests show 30-50 up and 5 down. But once you reconnect to wifi, lose speed, the re-connect directly to the modem the slowness persists directly connected to the modem.
So I start suspecting Mountain Lion. BUT the older iMac cannot be upgraded to Mountain and is still running Lion and has the same issue. The equipment is in the same place it's always been. We've added no electronics that would be interfering with signals.
Everyone is stumped and looking suspicously at the computer and OS. Please help. I'm beginning to hear the bing bong bing bong of dial up in my head.

Safari is now VERY slow after downloading Lion

My Safari (which is the latest version) is now VERY slow after downloading Lion. It takes forever for anything to load, and some pages don't load at all anymore. Any way to fix this? It is very frustrating!

I've just made a change to try to keep the wifi from crashing and it also seems to give me a speed boost online.
Go into your System Preferences, choose Network, and then in that dialog box choose "Advanced..."
Once there, select the DNS tab.
Click the plus sign and add the following to your list of DNS servers:
8.8.8.8
It's Google's public DNS and seems to have fixed both the dropping and speed issues.

Time machine very slow with mountain lion

Time Machine backups seem very slow with Mountain Lion.

Same problem here. I just upgraded from Lion to Mountain Lion. I only got 19 GB of space, but Time Machine wants 10 hours, whereas in OSX Lion a full backup would take just under an hour, and incremental updates were lightning fast.
I even sat it up to do it overnight, but on 8 hours it was only half way through only 10 GB. I can't live with that in the future.
Im trying to backup on a SD card which seems to work very good in Lion. Im on a 2012 Macbook Air using a SSD.
My bite of the apple has been somewhat sour. I tried reformatting the SD card, well knowing that I would lose old backups. But still the backup is extremely slow. Now I can't install Lion or Mountain Lion from scratch without having to wait 10 hours for TM backup or installing tons of applications and settings again. Bummer. I'm never going to early adobt a OSX upgrade again.

Apple File Sharing very slow with Mountain Lion

I've noticed since upgrading to 10.8 the transfer speeds over a LAN via AFP (File Sharing) are VERY slow.. in some instances. Based on the behaviour i'm guessing it has something to do with the amount of items.
for instance:
A folder that contains approx 122mb worth of 1500 small files takes me about 50 seconds to transfer while a long audio recording with a greater filesize of 125mb takes only 11 seconds.
using SCP from the command line the same 122mb folder took only 19 seconds while the audio took 10 seconds.
after performing the same operations on a computer running 10.6 I can deduce that the problem is on the receiving end. Audio file transfer times were the same, however the same folder of items took only 27 seconds when it was transferred to a computer running 10.6 regardless of which OS the computer sending the file was running.
apparently handling a greater number of files increases transfer time for both methods but AFP is painfully slow with 10.8 on the receiving end.
any thoughts or suggestions?
I've read a couple threads about people having trouble with Time Machine running slowly.. i wonder if this is related.

Same problem here. I just upgraded from Lion to Mountain Lion. I only got 19 GB of space, but Time Machine wants 10 hours, whereas in OSX Lion a full backup would take just under an hour, and incremental updates were lightning fast.
I even sat it up to do it overnight, but on 8 hours it was only half way through only 10 GB. I can't live with that in the future.
Im trying to backup on a SD card which seems to work very good in Lion. Im on a 2012 Macbook Air using a SSD.
My bite of the apple has been somewhat sour. I tried reformatting the SD card, well knowing that I would lose old backups. But still the backup is extremely slow. Now I can't install Lion or Mountain Lion from scratch without having to wait 10 hours for TM backup or installing tons of applications and settings again. Bummer. I'm never going to early adobt a OSX upgrade again.

Mac running slow after mountain lion

Mac startted running slower about a week after downloading Mountain Lion. Is that possible related?

Probably not but you haven't said anything about your system configuration so that may have a bearing on things. How much RAM is installed on your machine? If you have the 2GB minimum then you almost certainly could benefit by a RAM upgrade. Please complete your profile so we know a bit more about your system, it won't help on this thread because the thread has already begun however it will be useful down the road. For instructions on how please click Profile Update.
Another thing you can do is open Disk Utility (Applications - Utilities - Disk Utility) and run Repair Disk Permissions, I'd recommend doing that at least 2X.

IMac-27inch model (late 2012) running slow after Mountain Lion 10.8.5 supplemental update

I have the iMac 27-inch (late 2012 model), 8GB RAM, 1TB Hard Drive. All of a sudden after the Mountain Lion 10.8.5 Supplemental update it started running like molasses (apps take forever to open, takes forever to wake out of sleep, long boot up times, etc.) I ran verify disk, verify disk permissions, etc. I found that when I ran verify disk permissions, it stated that the iTunes permissions weren't right so I repaired disk permissions, reboot, still same problem. Ran verify disk permissions again, once again iTunes permissions issues, repair disk permissions, restart, same problem over and over again like Ground Hog Day, please help...

First, back up all data immediately, as your boot drive might be failing.
Step 1
This diagnostic procedure will query the log for messages that may indicate a system issue. It changes nothing, and therefore will not, in itself, solve your problem.
If you have more than one user account, these instructions must be carried out as an administrator. I've tested them only with the Safari web browser. If you use another browser, they may not work as described.
Triple-click anywhere in the line below on this page to select it:
syslog -k Sender kernel -k Message CReq 'Channel t|GPU D|I/O|find tok|n Cause: -' | tail | open -ef
Copy the selected text to the Clipboard (command-C).
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V).
The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.
A TextEdit window will open with the output of the command. Normally the command will produce no output, and the window will be empty. If the TextEdit window (not the Terminal window) has anything in it, stop here and post it — the text, please, not a screenshot. The title of the TextEdit window doesn't matter, and you don't need to post that.
Step 2
There are a few other possible causes of generalized slow performance that you can rule out easily.
Reset the System Management Controller.
If you have a portable computer, check the cycle count of the battery. It may be due for replacement.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane. See whether there's any change.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Check your keychains in Keychain Access for excessively duplicated items.
Boot into Recovery mode, launch Disk Utility, and run Repair Disk.
If you're booting from an aftermarket SSD, see whether there's a firmware update for it.
If you have a MacBook Pro with dual graphics, disable automatic graphics switching in the Energy Saverpreference pane for better performance at the cost of shorter battery life.
Step 3
When you notice the problem, launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Next, select the Disk Activity tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in and Writes out.)
Step 4
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

MacBook Pro runs slow after Mountain Lion installation

I have a mid-2009 13" MacBook Pro with 2.2g Ghz processor, 2 GB of RAM and 160 GB encrypted disc.
After installing Mountain Lion and the recent upgrade OS X 10.8.1 (12B19), the system runs noticibly slower than with Lion, which ran slower than the previous version. This shows up in opening and closing programs, rate that drop down windows appear when something is clicked on the task bar, rate that windows open and close, rate that the dock comes up and the icons expand when the curser is moved over them, etc.
Due to my type of work, I need to encrypt the disc. I know this is costing me some speed. I unencrypted the disc and it ran noticably faster, and when I re-encrypted it seemed to run faster than before unencrptying and re-encripting. I have repaired permissions and verified the disk OK.
Somewhere in the build up to Mountain Lion release I thought I read where 4 GB of ram was recomended for Mountain Lion, allthough now the specs indicate 2 GB is OK. In activity monitor, the pie chart for system memory seems to always remain less than about 40% of active memory (yellow).
What recomendations does the community have to increase the speed of operations back to when this system was new?
Dave

I was having the exact same problem. My MacBook Pro was seriously close to unusable how slow it was. On a different thread, someone recommended I reset the VRAM and PVRAM (not sure about those initials). Shut down computer. Rebooted while holding down Command-Option-P-R all at the same time until I heard the second startup tone and then released. I noticed an improvement in performance immediately.

Macbook running slow after mountain lion update

why? i have 2 gb of RAM, that should be more than enough, right?
firefox is running slow, everything is freezing. i have barely used any of my hard drive space with it being at 225.61 gb free out of 249.2 gb.
its really frustrating.....

Two gb is the bare minimum for running Mountain Lion.
The model 7,1 (Mid 2010, White Unibody) can use 8gb of 204 pin 1066mhz PC3-8500 RAM
These are good online stores for Mac compatible RAM
OWC http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3_Whi te - They offer Mac tested RAM at very good prices.
Crucial Memory http://www.crucial.com/ - good place to buy RAM from all over the world. They also have an excellent memory selector that allows you to choose memory based on your computer's model
Data Memory Systems http://www.datamemorysystems.com/apple-memory.asp - another good, cheap place to buying RAM if you live in the U.S.
Here are video instructions on replacing the RAM on the White Unibody.
http://eshop.macsales.com/installvideos/macbook_13_09_unibody_mem/
If you don’t have the tools to open up the MacBook OWC has a set for $5.
http://eshop.macsales.com/item/OWC/TOOLKITMHD/

Mail very slow in Mountain Lion

The upgrade to Mountain Lion went smoothly but Mail works really badly afterwards.
When sending an email, it takes a few minutes before the mail goes out. And that's with any size message.
Auto-completion of mail addresses while composing takes multiple minutes. Even after it finally comes up with a list of email addresses, pressing enter on one also takes minutes to acknowledge
At various times, hitting the mail icon on the dock has no effect. The same is true with Command+TAB
Overall, the unresponsiveness is painful and making me wish I hadn't upgraded

This didn't solve my problem. First of all:
     $ ls /Library/Preferences/com.apple.mail.plist
     ls: /Library/Preferences/com.apple.mail.plist: No such file or directory
but I do have the file in my local Library:
     $ pwd
     /Users/spate/Library/Containers/com.apple.mail/Data/Library/Preferences
     $ ls -l *mail*
     lrwxr-xr-x 1 spate spate     64 Jul 26 11:08 com.apple.mail.LSSharedFileList.plist@ ->      ../../../../../Preferences/com.apple.mail.LSSharedFileList.plist
     -rw------- 1 spate spate   6733 Jul 27 08:24 com.apple.mail.plist
     -rw------- 1 spate spate 56130 Jul 27 08:12 com.apple.mail.plist.bak
This is after I moved com.apple.mail.plist to com.apple.mail.plist.bak and then started Mail again. As you can see, it created a new, much smaller com.apple.mail.plist
No luck - just as painfully slow as before!
This is horribly painful!

Battery drains very fast after Mountain lion upgrade

After I upgraded the OS from Lion to Mountain Lion battery drains very fast in my MacBook Pro 13" (Mid 2010).
Drains approxymately 1% every minute.
I am now on 10.8.2
Any solutions? Any Help?

Hope we find some solution at the earliest.
Or else, I will have to roll back to Lion and my $20 is lost for 10.8.1
I am really disappointed.

Macbook Pro 2010 very slow since Mountain Lion!

Hi!
My Macbook Pro 2010 has become very slow since I installed Mountain Lion. How can I use OS X Lion again?

Regardless of whether you think you need it, uninstall it and test to see if the slowness problem is solved.
If it isn't put it back if you must, but there's no point trying to look for another cause till you've eliminated this one. You have a huge amount swaps which is what is causing your slowdown. 90% chance that's your AV software doing that.

Why is startup so slow after mountain lion upgrade?!

please someone help i regret upgrading it to mountain lion now. it was a brand new macbook pro i just bought not even a month ago and i upgraded it 2 weeks after and it takes over 1min to startup ever since... it wasnt like that before it was upgraded. please someone help. i don't want to have to do another installation of the mountain lion because il have to pay for it for another download. and i don't know and not confident enough to do a clean install anyway, whatever that is. what's going on exactly? is it a bug that'll get fixed with an upcoming mountain-lion update? it's not a matter of using space i don't think because it's a brand new laptop and has hardly anything on it. the only different thing was the upgrade and the startup was so obviously slow i know it has to be that. please someone help me fix the slow startup..

please someone help i regret upgrading it to mountain lion now. it was a brand new macbook pro i just bought not even a month ago and i upgraded it 2 weeks after and it takes over 1min to startup ever since... it wasnt like that before it was upgraded. please someone help. i don't want to have to do another installation of the mountain lion because il have to pay for it for another download. and i don't know and not confident enough to do a clean install anyway, whatever that is. what's going on exactly? is it a bug that'll get fixed with an upcoming mountain-lion update? it's not a matter of using space i don't think because it's a brand new laptop and has hardly anything on it. the only different thing was the upgrade and the startup was so obviously slow i know it has to be that. please someone help me fix the slow startup..

Why is my mac running slow after MOuntain Lion update??

after i updated my Mac Book it starts to browse very slow..why????

It doesn't sound like it, but you might try adding a different DNS server.
In Network System prefs, select the network service you use (ethernet or WiFi).
Click on Advanced.
Click on DNS tab.
Click the + button
Enter these numbers:
For OpenDNS: 208.67.222.222 and 208.67.220.220
Or Google: 8.8.8.8 and 8.8.4.4

Formatting my HD very slow after Mountain Lion crash

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