After installing Mountain Lion iMac i5 runs slow and hard to wake up

After installing OS X10.8 (Mountian Lion) my iMac i5 with 4GB RAM seems to run slower. It also is hard to wake up after sleep mode. Sometimes it even just freezes and when I force quit all the apps the apps can never be launched without a hard reboot.

Open Disk Utility (Application - Utilities - Disk Utility) Repair Disk Permissisons 2-3x. If that doesn't work then restart in Safe Mode to clear some caches and then restart normally. If it still has problems then your install is corrupt and you need to re-download and re-install Mountain Lion from the Mac App Store.

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After installing Mountain Lion iMac warmer

After I have installed Mountain Lion, I hear for the first time the fan on my iMac running. It's a iMac11,3 (mid 2010 model) with 4GB RAM and a standard configuration. Granted, it is mid summer and around 85 degrees but we had such warm days before in the last two years. And for the first time, the iMac gets very warm and the fan starts to run. It happened right after the install of Mountain Lion so that I don't think it's a problem with the fan.
Has anyone seen similar situations?

As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.
Here is a link to a Widget to monitor your temps and other operations:
http://islayer.com/apps/istatpro/

After installing Firefox v 22, AppleWorks runs slow and hangs up. Can I unintall v 22 and revert back to Forefox v 21?

I work on a iMac Intel Core 2 Duo - OSX 10.6.8 I rely on using AppleWorks v 6+ (Classic mode -Rosetta) I have over 3000 records in an AppleWorks data base and do not want to lose these records.
Also, I run two Operating Systems on my computer - one (OSX 10.6.8) in my internal HD, another from a 2TB external HD (also OSX 10.6.8). Although I do not recall doing so, I must have downloaded and installed Firefox v 22 on my "internal" HD. Since doing so, AppleWorks hangs up and sometimes requires me to Force Quit the App. However, when using my external HD (which still runs Firefox v 21) when I launch AppleWorks (from my Applications folder on my "Internal HD) I do not experience any problems with AppleWorks. The problem with AppleWorks hanging up or not responding, began only after installing Firefox v 22 on my internal HD. I have no idea why but Firefox v 22 is definitely causing problems with AppleWorks v 6+
Is it possible to revert back to Firefox v 21 (if I uninstall v 22)?

I 'm facing the same problem but I don't want to uninstall better to Roll back to my previous version . 'cause many plug-in ( which is most usefull and important to me ) not supported with my present version V22. like easy youtube .
I want to know what is the benefit if I don't get any better opportunity from upgrade version and also lose my previous version's facility !

Mac pro won't wake up after installing Mountain Lion

After installing Mountain Lion in my Mac Pro it won't wake up after long periods of sleep. I have tried unplugging it for 15 seconds and plugging it back in and starting it back up. No help. I've reset the Pram with no change.
Chuck

Two calls into tech support, but I think they may have helped me fix this.
CHECK:
\Library\LaunchAgents
\Library\LaunchDaemons
\Library\StartupItems
remove any third party software and set aside. (they told me I could keep some adobe, microsoft and HP items)
THEN CHECK:
System Preferences --> Users + Groups -->Login Items
remove any third party stuff from in there.
I'll know tomorrow morning if this REALLY works, but it dfefinitely allowed my computer to sleep and wakeup over a short period of time.

HT1338 Why is my MacBook Pro running so slow after installing Mountain Lion 10.8.

Why is my MacBook Pro running so slow after installing Mountain Lion 10.8. I have restarted, created more free space on my hard drive and run disk utilities. Simple operations result 20 seconds or more of the spinning wheel. Some are so slow that the operation does not happen at all. Itunes music cuts out during operations.

Check out this article by Thomas Reed for help http://www.reedcorner.net/understanding-upgrade-nightmares/. Also, make sure all apps are compatible with Mountain Lion using www.roaringapps.com. Do you have any antivirus installed? Make sure all apps are updated as well.

My wifi is very slow after installing mountain lion on my Mac book pro

My wifi is very very slow after installing mountain lion on my MacBook pro.
What can I do?

Ha ha, I misread that as "My wife is very slow after installing mountain lion on my Mac book pro"
BTW on my MBPro (late 2009 with max RAM) Mountain Lion runs very well with no slowing down.

After installing mountain lion i lost my pictures in iPhoto, lost my music in iTunes, internet became very slow. What can I do to fix this issues

after installing mountain lion I lost pictures in iphoto, lost my musisc in itunes, my icluod is not working, internet its very slow and some other issues. There is a way how to fix these issues

Open System Preferences > iCloud
Deselect the box next to Photo Stream then reselect it.
Now for your music. Launch iTunes. From the iTunes menu bar top of your screen click iTunes > Preferences then select the Store tab.
Select: Music. (and Apps and Books) if you want.
Click OK.
iCloud syncs via your Wi-Fi network so give it a minute or two to reset your photos and music.
Slow internet ... try turning off the modem for a few minutes, then turn it back on.

My macbook pro is very slow after installing mountain lion

my macbook pro is very slow after installing mountain lion? Is anyone else having this issue?

If you don't use an SSD and bump your RAM up to 8 Gb's you may experience slow speeds, but I noticed slow speeds with your general configuration in SL.
one thing you should consider right now is, Spotlight is Reindexing your hard drive, that takes time and resources, (resources which you don't necessarily have to spare).
If you continue feeling like your performance is slow, you have a few options with this computer (I have the same one).
the express card slot can house a wintec SSD drive. That little door on the side of your machine is pure gold for a really quick solution for speeding up your machine. I have one in mine right now i'm using as a scratch disk for CS6 but I used to boot from it, and the speed boost was out of this world.
You could take out the internal HDD and put in a new SSD (I have a Vertex 4 from OCZ) it is completely over kill but my experience is pretty fast and I keep up with the later MBP models colleagues have.
There are some other options for you like taking out the optical drive (however I don't know if I'm supposed to talk about that here). Google Data Doubler.
You need to also set it to always use the 9600 chipset, this will increase performance a lot too. to do this go to system preferences>energy saver>Better Performance. This switches the video card to the better one and makes a world of difference.
Lastly, your RAM. after an EFI Firmware update, our computer support up to 8GBs of RAM. Do it!
Late 08 MBP 2.53 GHZ 9600 chipset 8gb ram, Vertex 4 SSD

Imac does not recognize my usb after installing mountain lion

My imac don´t recognize my usb after installing mountain lion, also don´t let me see all my photos in jpg format

What is "my USB"? If it's an external USB device, is it ML compatible?
Which app do you use to open JPGs? Is it ML compatible?

Serious wifi problems with iMac after installing Mountain Lion

After installing Mountain Lion, I'm experiencing serious trouble with wifi. I noticed that some people had this before with Lion. Can anybody help to solve this problem or should I downgrade to Mountain Lion?
Please help
Thanks in advance!

Thank you for the information Arizonadonn! I'll install 10.8.1 this evening. I really hope you're right after having connection troubles for almost a month now .
If this solves my problem, you'll be my hero !

Outlook (MS Office for MAC2011) appears to be using up to 67% of my CPU time even when I'm doing nothing. Also, immediately after installing Mountain Lion, log-ins to the OS and normal operations noticeably slowed. Suggestions?

After installing Mountain Lion, I experienced a noticeable reduction in performance. When I log-in, I must wait several seconds for the cursor to become effective in the log-in window. When I come out of standby mode, I have the same issue. Also, when looking at cpu usage, Outlook appears to be using up to 67% of cpu when not doing anything. I'm not happy with this result.
Does anyone have suggestions as to how to fix?

Uninstall Office and reinstall it
Use these instructions to do it and do not omit any of them.

After installing mountain lion facebook will not load on iMac

Any helpers Please !!

I have the same problem... but when i connect my MacBook Pro late 2009 on my cousin internet the facebook page works normaly. but when i reconnect in my wifi it stops to work again... and it only hapens with macbook pro, On my iPad, iPhone and PC the facebook page works properly. And another thing, when my counsins bring their Macbooks to my network, it stops to enter on facebook too... I already reset my router config everything and facebook dont work with anything with mountain lion... My router is a linksys wag200n and the problem started when i install mountain lion. Thanks for help and sorry for bad english xD.

Ethernet connection issues after installing Mountain Lion

After installing Mountain Lion I can't get my iMac to connect by ethernet. It says that no cable is connected. The cable/connection is fine. When I plug in my MacBook Pro running Lion, the ethernet connects just fine.

same exact problem. in fact, my iMac24 (2009) worked flawlessly until I installed the latest update to Mountain Lion. I then checked my MBAir (2011) and it too has a problem when using the USB/Ethernet adapter. Neither can get an ethernet connection. I deleted my network preferences and rebooted my machine, played around with my Ethernet switch and even reboot my gateway/router. I've never had to do any of this to my network until Mountain Lion. Wireless is the only thing that continues to work on both machines.

After installing Mountain Lion, mac won't let me type password to log in.

I installed mountain lion about 6 days ago and whenever i startup my computer it is really slow. Then when i go to type in my password nothing will type and i cant use the trackpad either. To be able to log in, I have to sleep my imac and then retry and then usually it will let my type. It is also really slow when i am running more than 1 program at once. Any solutions?

Are you clicking the password field or just tapping? Tapping does not work in the login screen.

Ive just upgraded my late 2009 macbook, and things are not working properly. First of all, when I started the computer first time after installing Mountain Lion, some message advised me that some files were impossible to install.

Ive just upgraded my late 2009 macbook, and things are not working properly. First of all, when I started the computer first time after installing Mountain Lion, some message advised me that some files were impossible to install. Once I wrote my password, and for now on, everytime I start the session, another window advise me that "Java SE 6" is missing, due that, the computer can't run some "CS5Service Manager". If I try to install it, the download ends with an error. If finally, you skip the istallation, you arrive to the dock, but the menu bar at the top of the screen doesn't show up.
In addition, my trackpad doesn't works either. I can move the arrow but i can't click anywhere, probably because the option of clicking by touching is disabeled and I can't performance a regular click.
I'll be very glad if someone know what the heck is happening with my computer. Anyway, I'm going to the genius bar next Saturday. Thx!

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After installing Mountain Lion iMac i5 runs slow and hard to wake up

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