If I upgrade to mountain lion can I uninstall it if I don't like it

If I upgrade from Lion to Mountain Lion and I don't like Mountain Lion, can I uninstall Mountain Lion and be asured that my IOS Lion will function and be ok?

You can't uninstall an OS. You can only erase and re-install the previous OS. You would also need a backup of your previous data.

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I have Snow Leopard, But I cant upgrade to Mountain Lion, can I upgrade to Lion?

I have an old MacBook, from 2006 and currently have Snow Leopard installed (after purchasing it in 2010), I want to upgrade to Mountain Lion mainly because I want the Xcode 4 which looks 100% better than the current Xcode I have. However, when I try to buy the OS X Mountain Lion it tells me I do not have the correct processor. After a little research I saw an article that said some OS X Lion users could not upgrade to Mountain Lion because Mac is no longer supporting its older models like MacBooks before 2008 or something like that.
So this lead me to the idea maybe I don't have to upgrade to Mountain Lion, maybe I could upgrade to Lion and still be able to get Xcode 4. So, I tried to find a way to upgrade to OS X Lion, but I could only find the upgrade to Mountain Lion. Which is frustrating because I don't want to buy a brand new MacBook just to get Xcode 4, its nice, but not that nice. But Apple should allow me to at least upgrade to Lion, because they decided to no-longer support this older hardware I am still using.

Choose About this Mac from the Apple menu; Lion requires a Core 2 Duo(not Core Duo) or better CPU and at least 2GB of RAM. You don't need to buy a brand new Mac in any case.
(73569)

Upgraded to Mountain Lion, can no longer use airplay

Last week I purchased Apple TV (I believe its 3rd Gen) and had it all working fine, until I decided to be 'clever' and upgrade to Mountain Lion so I could use the mirroring in AirPlay. Prior to the upgrade I could stream brilliantly through itunes, including movies, to the tv via our Apple TV.
After the upgrade iTunes intially kept popping up every time I would attempt to play a movie through airplay and say it couldn't find the Apple TV. After a few hours of pulling my hair out, restoring the Apple TV, restarting my MacBook a million times and whacking the keyboard for effect - the AirPlay icon has now totalling disappeared from iTunes. After a bit of investigation, I discovered that my Mac is actually mid 2010 and thus I understand incapable of mirroring through Mountain Lion! I've read that uninstalling Mountain Lion is actually more a case of wiping my laptop and starting again. I'm really hoping to avoid that!!
Is there a way I can still use AirPlay in iTunes with Mountain Lion and if so I'd appreciate some direction on how to get it working.

fixed - found out I had to turn off IGMP Proxy in my FiOS home router. Why, I don't know.

Before upgrade the mountain lion need to uninstall snow leopard ?? or its automatically upgrade?

please help me

You can just upgrade to Mountain Lion. You do not need to uninstall Snow Leopard.

Upgraded to mountain lion, can no longer see D110 on WLAN

I recently upgraded my iMac to Mountain Lion. It is connected to my FiOS home router via Ethernet (wired). I have a Photosmart D110 on my WLAN. Prior to the upgrade, everything worked fine. Since the upgrade, the iMac can no longer see the D110.
If I put the iMac on the WLAN it sees the D110, but it can't see it when the D110 is on WiFi and the iMac is on wired Ethernet. I'd like to keep the iMac on wired Ethernet, is there a fix?
I did try deleting the printer, connecting it via USB, and re-adding it to see if it would install any software updates, but I'm still having the same issue.
Thanks!

fixed - found out I had to turn off IGMP Proxy in my FiOS home router. Why, I don't know.

Can I uninstall Firefox if I don't like it or it doesn't solve the ad ware problem I am having with IE 8.0?

I have not installed Firefox 3.6 yet. Can I uninstall it if it doesn't solve my security issue (being swung from ebay logon page to some bullshit page prompting me for Name, Credit Card etc...) on IE 8.0.
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.0.3705; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Jim, Yes, Firefox can be uninstalling just as any other Windows application can be uninstalled.
See [[Uninstalling Firefox]].

Mysterious notification since upgrading to Mountain Lion

A couple of times since upgrading to Mountain Lion a popup has appeared that I don't understand. I suspect it relates to the Messages application, but I can't me sure.
Any ideas as to what it is and what i should do about it?

This popup have nothing to do with iMessage.
I just search a little bit on the web, and I found it to be related to LogMeIn software. I don't use this software but the description and the logo does fit.

HT204053 I don't have an icloud icon on my mac. how do I set-up? I did the upgrade to mountain lion.

If I don't have an icloud icon on my mac systems preferences. how do I set-up icloud? I did the upgrade to mountain lion.

Then you haven't upgraded to Mountain Lion.
Check inside your /Applications folder for something like "OS X Mountain Lion Installer" and double click it. If the file doesn't exist, you'll have to downloaded/buy it from the app store.
If you did make the purchase already, open the app store (under the apple >> app store) and then click Purchases at the top of the app store window. It will ask for your apple id and password. Do you see Mountain Lion listed? If so, then download it. If not, click on Featured and look for mountain lion in the side bar on the right and you'll have to buy it.

HT1349 I was having issued opening documents and I called apple help, they suggested that I upgraded to mountain lion and now my Microsoft word, power point and excel do not work. how can I un install and re install the old version. I need my applications

10.8.210.8.2
rocess:         Microsoft PowerPoint [1423]
Path:            /Applications/Microsoft Office 2011/Microsoft PowerPoint.app/Contents/MacOS/Microsoft PowerPoint
Identifier:      com.microsoft.Powerpoint
Version:         14.1.0 (14.1.0)
Build Info:      Unknown-110310~0
Code Type:       X86 (Native)
Parent Process: launchd [118]
User ID:         501
Date/Time:       2013-01-11 23:07:49.777 -0800
OS Version:      Mac OS X 10.8.2 (12C60)
Report Version: 10
Interval Since Last Report:          49824 sec
Crashes Since Last Report:           21
Per-App Crashes Since Last Report:   6
Anonymous UUID:                      51BF0AF4-B2A5-3CC6-8AE5-5AE703F2755E
Crashed Thread: 0
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Application Specific Information:
dyld: launch, loading dependent libraries
Dyld Error Message:
Library not loaded: @rpath/SmartArt.framework/Versions/14/SmartArt
Referenced from: /Applications/Microsoft Office 2011/Microsoft PowerPoint.app/Contents/MacOS/Microsoft PowerPoint
Reason: image not found
Binary Images:
   0xd8000 -   0xfd0fe7 +com.microsoft.Powerpoint (14.1.0 - 14.1.0) <DCE73116-D730-34FF-1585-3926521A956F> /Applications/Microsoft Office 2011/Microsoft PowerPoint.app/Contents/MacOS/Microsoft PowerPoint
0x1297000 - 0x12b0ff7 +com.microsoft.mbukernel_framework (14.1.0 - 14.1.0) <A92FB57F-23C8-3928-54A7-1769839A3790> /Applications/Microsoft Office 2011/*/mbukernel.framework/Versions/14/mbukernel
0x12c6000 - 0x2154fef +com.microsoft.officeart (14.1.0 - 14.1.0) <55BCDCBF-4605-0D4C-2D61-9E3989E8F211> /Applications/Microsoft Office 2011/*/OfficeArt.framework/Versions/14/OfficeArt
0x2411000 - 0x2b7afff +com.microsoft.office_library (14.1.0 - 14.1.0) <DBC2F3ED-8396-EC63-DF29-7B210F989FA8> /Applications/Microsoft Office 2011/*/MicrosoftOffice.framework/Versions/14/MicrosoftOffice
0x2cd4000 - 0x2ef2ff7 +com.microsoft.mcp (14.1.0 - 14.1.0) <98419278-F21E-17DC-B2AD-A0D551ACD1F2> /Applications/Microsoft Office 2011/*/MicrosoftComponentPlugin.framework/Versions/14/MicrosoftComponentPlugin
0x2faf000 - 0x3054ffb +com.microsoft.ole (14.1.0 - 14.1.0) <7E409CD5-7F65-4C6B-18DC-04663216C2A8> /Applications/Microsoft Office 2011/*/MicrosoftOLE.framework/Versions/14/MicrosoftOLE
0x3075000 - 0x34ecff3 +com.microsoft.chart (14.1.0 - 14.1.0) <7250B005-7CE6-8497-5A06-B257894F5376> /Applications/Microsoft Office 2011/*/MicrosoftChartPlugin.framework/Versions/14/MicrosoftChartPlugin
0x8fed7000 - 0x8ff09e57 dyld (210.2.3) <23DBDBB1-1D21-342C-AC2A-0E55F27E6A1F> /usr/lib/dyld
Model: iMac12,1, BootROM IM121.0047.B1F, 4 processors, Intel Core i5, 2.5 GHz, 4 GB, SMC 1.71f21
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.70.23-P2P
Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: ST3500418AS, 500.11 GB
Serial ATA Device: HL-DT-STDVDRW GA32N
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 3
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 5
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 4
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 3

Welcome to the Apple Support Communities
I don't know why Apple recommended you to upgrade to Mountain Lion, because it shouldn't solve anything related to your documents.
As I can see, you are not using the latest Office update, so install 14.2.5 update for free > http://www.microsoft.com/mac/downloads?pid=Mactopia_Office2011&fid=0F4E073F-4FEC -440D-A9BF-1E01EE9E92AD#viewer If you can't install it, install 14.2.3 first

After upgrading to Mountain Lion, I repurchased Garageband and I can't get passed the complete installation. I don't seem to have the "com.apple.garageband.plist" file that has been a common solution. Any suggestions?

After upgrading to Mountain Lion, I repurchased Garageband and I can't get passed the complete installation. I've read through several posts that all reference the "com.apple.garageband.plist" solution. I don't seem to have the referenced .plist. Any solutions or suggestions?

Did you upgrade from SnowLeopard?
I can't get passed the complete installation
What exactly is happening? Is GarageBand trying to download over and over again?
all reference the "com.apple.garageband.plist" solution. I don't seem to have the referenced .plist.
The property list stores your preferences, but also the settings from the last run of the application. If that file is corrupted in some way, you might see third behaviour.
You must have this file, for it will be recreated automatically, if it is missing, or you have a permissions problem with your user library.
Perhaps you did look in he wrong place.
in MacOS 10.7. or later the User Library is hidden. To find the Preferences Files use the Finder's "Go" menu:
Quit GarageBand, if it is running.
Click onto you Desktop to bring the Finder forward.
In the Finder Menu press "Go" and hold down the "option/alt" key, until your user library appears in the drop-down menu
Select "Library" and in the Finder window that opens navigate to the "Prederences" folder; move com.apple.garageband.plist to the Desktop.
Log off and on again (don't skip that step!). Retry GarageBand and see if it GarageBand is now downloading the missing content properly.
If that does not fix the problem, post back and explain in more detail what the download problem is.
Why did you "repurchase" GarageBand? If you already owned GarageBand '11, it should be unnecessary.
Regards
Léonie

After upgrading to Mountain Lion, I cannot open my File Maker Pro files. Can I use Numbers to open these files?

After upgrading to Mountain Lion, I cannot open my File Maker Pro files. Can I use Numbers to open these files?

Numbers is a spreadsheet program and FileMaker is a database program, so you probably can't use Numbers to open them unless you had first exported them from FileMaker in a spreadsheet-compatible format.
If you upgraded from 10.6 Snow Leopard or earlier and your old copy of FileMaker won't open anymore, it might be a PowerPC application that is not compatible with 10.7 and later. If that is the case, to work with your FileMaker files you should upgrade your copy of FileMaker to the latest version, which seems to be FileMaker 12.

After upgrading to Mountain Lion 10.8.2, I cannot print to my Samsung laser printer ML 2525w? How can I get this set up to print?

After upgrading to Mountain Lion 10.8.2 on my iMac, I cannot print to my Samsung B&W Laser printer ML 2525W either by USB or wireless. Any help on how to setup or reconfigure would be apprecaited.
I either print blank pages or prints one time then goes off line, or spits out a bunch of blank paper, etc. Have gone through all the standard fixes, reboot, reset , reload driver, etc.

From the link to the Thread you provided, I worked through the one message procedures that were listed.
For ease of reference, I have copied them and printed them below. This was an old thread but the guidance still works with no firmware upgrade required.
I would stress that you MUST delete any and all files relating to USB connection of the printer to the MAC, including all print drivers (from both Apple and Samsung either from CD or web downloads) and all print queues, etc. I was only able to get the printer to properly hand shake with my Mac by setting it up wirelessly after all old files were deleted with hard power off reboots on both the Mac and Printer.
I hope that someone from Apple will pass this note along to their programing department because there is some type of incompatibility in the new ML OS and the Samsung ML2525w print dirvers used for a cable (USB) type connection. Apple needs to be talking to Samsung to get the USB issue resolved. I am going to post this same message on the Samsung site to see if someone from there will contact Apple to work together on a final solution for USB connectivity.
Here is the steps I followed to get my ML2525w to work in the wireless mode. Again, I cannot stress the need to clean out all the old files (drivers, print queues, etc. - everything) before setting up wirelessly.
As a note, I ran this printer with Lion for almost 2 years and it always worked fine (both wireless and USB). From other comments on the thread, users were good with this printer using Lep. and Snow Lep also. - - no issues from either a USB connection or wireless until Mountain Lion.
Before the fix, I was experiencing many of the same issues as described on user chat threads, printer going offline after a print job. 1st page sometimes printing but all the rest of the pages were garbage. No printing at all. Printer just running a bunch of blank pages out. etc.
I run an iMAC 27" desktop with the ML OS upgrade just installed from Lion.
"I've just installed one of these printers for my parents.
First of all, don't waste your time connecting the ML-2525W as a USB printer. The printer will go offline after each print job. It's hopeless, at least (I assume) until Samsung gets around to publicly releasing a firmware update.
Instead, you have to use the ML-2525W as a wireless printer. In that mode, it works fine.
This is what I did:
(1) First, if you have already attempted to install the Samsung driver software from the included CD-ROM, uninstall it. Get the uninstaller from the Samsung support site:
http://www.samsung.com/us/support/downloads/ML-2525W
Download the "Printer Driver (ver. 4.0)" ZIP file. It unzips to a folder that contains the uninstaller. Likewise, download the "Smart Panel Driver" ZIP file and uninstall the Smart Panel software.
(2) Disconnect the USB cable from the printer, if it is connected. Pull the power plug on the printer and power cycle it.
(3) Restart your Mac.
(4) Go to the "Printer Driver (ver. 4.0)" folder that you previously unzipped. Inside it is a folder named "WirelessSetting". Open the folder and run the "Wireless Setting.app".
(5) The application will ask you to connect the USB cable to the printer. Do so, and the Mac should be able to communicate with the printer to perform the wireless setup.
(6) The application will show you a list of wireless networks. One of them is the wireless interface in the printer (ad-hoc). You can ignore that unless you intend to use the printer without connecting to another wireless network. In my case, I selected the wireless network in my parents' home (infrastructure) and entered the security passphrase. The application then configured the wireless interface in the ML-2525W to connect to the home network.
(7) The Wireless Setting application will then tell you to disconnect the USB cable.
(8) After finishing the Wireless Setting application, go to Word, Textedit, Pages, or Safari, and select a file or page to print. In the print dialog window, you should see the ML-2525W as a "Nearby Printer" (i.e. via Bonjour). Select the ML-2525W, and your Mac will automatically connect to Apple's Software Update and download the latest Samsung driver. If for any reason the Software Update download does not succeed, you can manually download and install the Apple driver using the previously published link in this discussion.
(9) After that, you should be able to print to the ML-2525W whenever you want, without the printer going offline.
(10) If you have a USB printer queue still in your Print & Fax Preferences (from your previous unsuccessful attempt to connect via USB), you can delete it. You only need to keep the Bonjour queue.
Obviously YMMV, but in my case this procedure got the printer working reliably without the need for a firmware update."
MacBook (white 12"), Mac OS X (10.6.5)

After upgrading to Mountain Lion, i can't connect to app store or safari

After Upgrading to Mountain Lion, I can't access the app store, itunes store, Safari - anything that requires the internet. I tried resetting my modem and rebooting.
I also tried deleting items from the keychain that look like they are related to the above. When I did that and rebooted, It works for a little while, and then gets back to where it won't login to anything on the internet and safari won't load anything.

This means that at some time you had the iWork ’09 trial installed. You need to delete the trial & then reinstall from the boxed DVD or the Mac App Store. The files to delete are the iWork ’09 folder from the main HD > Applications; the iWork ’09 folder in HD > Library > Application Support & the individual iWork application plist files found in HD > Users > (your account) > Library > Preferences for each user. Yvan Koenig has written an AppleScript that removes the files. You can find it on his box.com account in for_iWork'09 > other_iWork'09 items > uninstall iWork '09.zip.

After upgrading to Mountain Lion, I can't delete/move emails using Mail app

I upgraded to Mountain Lion from Snow Leopard and having problems with my Mail application.
The long and short of it is that I cannot delete or move emails from my Inbox. When I select an email in the preview panel and delete it, it disappears, but when I select the Trash folder, it isn't in there. And when I go back to my Inbox, lo and behold, it is back there again, as if I had never deleted it. The same holds true when I try to move an email from my Inbox to one of my iCloud folders.
Emails come in to my Inbox just fine.
And I am able to move emails from one iCloud folder to another, however.
And I do not have this problem when I access my email via Iphone, ipad or icloud.com. In fact, when I delete an email from my iphone, it gets deleted from my Inbox on my Mail app.
I looked in Mail Preferences, and I have one Account set up: iCloud IMAP. Is that right? I use me.com for my email.
Any ideas here?

This means that at some time you had the iWork ’09 trial installed. You need to delete the trial & then reinstall from the boxed DVD or the Mac App Store. The files to delete are the iWork ’09 folder from the main HD > Applications; the iWork ’09 folder in HD > Library > Application Support & the individual iWork application plist files found in HD > Users > (your account) > Library > Preferences for each user. Yvan Koenig has written an AppleScript that removes the files. You can find it on his box.com account in for_iWork'09 > other_iWork'09 items > uninstall iWork '09.zip.

I upgraded to Mountain Lion and now I can't use any of my software!

What a disaster and huge mistake. Upgraded to Mountain Lion and now I can't run Autocad 2012 for Mac, any of my Adobe Creative suites software such as Photoshop, Illustrator.. and now I can't even do upgrades because Mountain Lion doesn't allow me to launch DMGs. I've lost thousands of $'s in software, not to mention time, but most importantly now I can't even work! I just tried to revert back to Snow Leopard by intalling it back in my hard drive and it won't let me. I never used Time Machine. Is there any way on earth I can revert back to my old operating software??? Please help. And if you haven't upgraded yet and are thinking about it. BEWARE - and don't do it. I've been reading that Mountain Lion isn't working with Microsoft applications either. Omy...I haven't even checked that.
and of course no one at Apple support can or will help me

lunaulu wrote:
It's not my Microsoft that I use much or am worried about. I can't run AutoCAD. and I can't update AutoCAD either. When I try to mount an update just to get it working, it says it can't run the DMG file. Apparantly this new platform doesn't use Rosetta - which is needed to run any of these updates or downloads. ***? and then When I try to open CS4 appliations - Adobe Photoshop, Illustrator, or InDesign - I get the message "Licensing for this product has stopped working - Error 150:30 - ***?
So basically I can't use ANY of the programs I ran before. And yes I have googled desperately all day. Adobe has some suggestions - like deleting a Flex files - which I did...Defragmenting - which I did. And most importantly provides am Adobe Licensing Repair tool to fix - which I can't open because Mountain Lion won't mount the DMG in order to run it! It's a complete disaster and I don't have the money or time to purchase and or reinstall everything. I am just screwed.
No you are not, calm down, cbs20 already gave you the answer on opening dmg files, updates are available for most of your programs and I assume you have licenses for the Adobe products. AutoCad you'll have to wait for.
And please .... Start Backing Things Up, you could lose it all without one, work included.

If I upgrade to mountain lion can I uninstall it if I don't like it

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