Yes, it is legal, but you should contact Acer about obtaining alternate Windows 7 Professional 64 bit recovery disc so you can install it.
Please see: Acer Recovery Media Purchase Program
You should also run the Windows 7 Upgrade Advisor to find out if all your applications and hardware are 64 bit capable.
You will have to do a clean installation, there is no in place upgrade path from Windows 7 32 Bit to 64 bit.
The bottom line: Windows 7 will support both 32-bit and 64-bit systems. The bare minimum requirements for the 32-bit include a 1GHz processor, 1GB RAM, 16GB available hard-disk space, and a DirectX 9 graphics device with WDDM 1.0 or higher driver. 64-bit systems will require at least a 1 GHz processor, 2GB RAM.
Using the Windows 7 64 bit disk, install the Windows 7 Windows Easy Transfer Utility from the DVD (To find it, just navigate to x:supportmigwiz, 'x:' represents the name of your disk drive. In this folder, you will see a collection of files, the important one you need to look for and double click is 'migsetup'.) , run it and create a WET file (Windows Easy Transfer file), if you have an external hard disk, you can have it stored there so you can access it later when you do a clean install of Windows 7 64 bit disk.
Once you have done that, simply do a clean install of Windows 7 64 bit disk. In Windows 7 64 bit disk, launch Windows Easy Transfer, follow the on screen wizard, point to where you stored the the WET file (external hard disk), and it will restore your personal files and settings. Reinstall any necessary applications.
Button and browse the PDF files you want to import.Step 2: Convert PDF to InDesign Supported FilesGo to 'Home' tab and then 'Word' or 'To Others' to enable conversion.
You can also click the 'Open File.'
32 vs 64 bit
Download Windows 7 Pro 64
http://windows.microsoft.com/en-US/windows7/32-bit-and-64-bit-Windows-frequently-asked-questions
Is my PC running the 32-bit or 64-bit version of Windows?
http://windows.microsoft.com/en-us/windows7/find-out-32-or-64-bit
http://windows.microsoft.com/en-US/windows7/Installing-and-reinstalling-Windows-7
Windows 7 64 bit comes in handy when you need to address at least 4 GBs or more of RAM. Windows 7 32 bit can utilize up to 3.2 GBs of RAM. Because the memory address space is much larger for 64 bit Windows, that means, you need twice as much memory than 32 bit Windows to accomplish some of the same task, but you are able to do so much more, you can have more applications open, do things like run an Antivirus scan in the background without it affecting your system performance. Windows 7 64 bit is more secure too, malicious code cannot easily infiltrate it, drivers are more reliable since they must be signed before they can work with 64 bit Windows 7.
As for compatibility, you will need 64 bit device drivers for any hardware devices you might have. Free mini laser engraver software. Also, there is no 16 bit subsystem in Windows 7 64 bit, which means, your applications must be 32 bit only, not 16 bit installer or uninstallers.
If you are unable to obtain Windows 7 Professional 64 bit from Acer, you can download it and burn it to a blank DVD and install it using the product key located on the COA sticker at the bottom of your laptop:
Download the ISO Image of Windows 7
Windows 7 Professional x64 (64-bit)
Windows 7 Professional x64 (64-bit)
English: http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65805/X15-65805.iso
ImgBurn - In addtion to supporting the creation of CD's from .ISO files,
it supports a wide range of other image file formats, and it's free.
(BIN, CUE, DI, DVD, GI, IMG, MDS, NRG, PDI and ISO)
http://www.imgburn.com/
it supports a wide range of other image file formats, and it's free.
(BIN, CUE, DI, DVD, GI, IMG, MDS, NRG, PDI and ISO)
http://www.imgburn.com/
Download and install Gear ISO burn (Free):
http://www.gearsoftware.com/GEAR-ISO-Burn.php
http://www.gearsoftware.com/GEAR-ISO-Burn.php
Note: Always use the slowest burn speed (4x or 2x) if offered a choice.
Reactivation might be required:
Activate Windows 7 manually:
1. Click Start, and in the Search box type : slui.exe 4
1. Click Start, and in the Search box type : slui.exe 4
2. Press ENTER on your Keyboard
3. Select your Country.
4. Select the Phone Activation option, and hold on for a real person.
4. Select the Phone Activation option, and hold on for a real person.