Windows 7 ISO (x. Official Download - Ultimate / Pro / Home Premium. Want to reinstall Windows 7 to fresh state or want to perform clean install of Windows 7 on your computer or virtual machine (VM), but couldn’t find any DVD or USB installation media, nor ISO files? If you have purchased a Windows 7 license, in addition to product key, you usually have access to either an physical installation media in DVD discs, or able to download Windows 7 ISO images via digital delivery channel. If the Windows 7 setup installation ISO files are missing or deleted, you could no longer able to install Windows 7. Originally Microsoft did not provided ability to download Windows 7 OS in any format, unless you purchased the retail version of Windows 7 license online. In such cases, Microsoft delivered the ISO downloads via Digital River, Microsoft’s official content delivery partner for Windows 7. ![]() By default, Windows Vista and Windows 7 can use up to 4 GB of memory. Learn how you can enable support for up to 64 GB with an easy to use patch. Though the direct download links for Windows 7 ISO images work for those who not purchased the license online, it’s not an officially sanctioned nor legal way. In fact, Microsoft have removed the Windows 7 ISO files from the Digital River’s servers since 2. Microsoft does however start to provide a way to download Windows 7 disc images in ISO format, directly from Microsoft’s servers, through Software Recovery page. Here’s how you can download Windows 7 Disc Images (ISO Files) via official channel legally, and optionally, create installation media such as DVD or bootable USB drive to install Windows 7: You need a genuine and valid retail Windows 7 product key to download from Microsoft Software Recovery site, regardless of editions. It does not accept OEM Windows 7 product key (product key that printed on label pasted on purchased PC), upgrade version product key, product key from MSDN / Tech. Net, or Enterprise edition key. If you attempt to use an unsupported product key to pass the verification, you will receive the following error: Unsupported Product. The product key you entered appears to be for software that was pre- installed on a device. Please contact the device manufacturer for software recovery options. Visit Windows 7 Disc Images (ISO Files) download page at https: //www. Locate the Windows 7 product key – the product key is located inside the box that the Windows DVD came in, on the DVD, on the receipt or confirmation page for a digital purchase or in a confirmation e- mail that shows you purchased Windows. If you purchased a digital copy from Microsoft Store, you can locate your product key in your Account under Digital Content. If you no longer able to locate the product key, but have the Windows system still up and running, you can easily retrieve the product key from the system. Enter the product key in the text box at the bottom of the page, and hit Verify button. Select a product language. You can also send the Windows 7 setup ISO download link to email. The download link, which expires after 2. Windows 7 installation ISO at later time. Burn the ISO image to DVD or write to USB flash drive to create bootable USB drives and DVDs. Ability to burn ISO to DVD is built- in in Windows 8, Windows 8. Windows 1. 0. In Windows 7, or to create a bootable Windows 7 setup USB flash drive, you may need Windows USB/DVD Download Tool or other third party software. Don’t have a Windows 7 retail product key? Now all Windows 7 users are entitled to free upgrade to Windows 1. Download Windows 1. Windows 7 product key can be used to install and activate Windows 1. Enable More Than 4. GB RAM In Windows Vista and 7 3. Bit. This article is written for 3. Unless explicitly mentioned, Windows 7 and Vista refers to the 3. Operating Systems. Couple of months back, I had blogged about a peculiar Windows 7 issue which could cause a BSOD (Blue Screen of Death) if the system had 4. GB (or more) RAM. The Official Windows 7 Home Premium Full Version Free Download service pack 1 (SP1) product key. Single-click direct download Windows 7 ISO. ![]() ![]() Windows 7 ISO (x86 & x64) Official Download – Ultimate / Pro / Home Premium.![]() ![]() ![]() ![]() I managed to find a fix for that issue. But, I had another minor niggle to figure out. Although I paid for 4. GB of RAM, Windows refused to use more than 3. GB. If you have 4. GB or more RAM then you are probably familiar with the following screen. Computer Properties displayed installed memory as 4. GB but at the same time stated that only 3 GB is usable. So, where did the remaining memory go? As it turns out, chunks of your RAM are reserved for various purposes and are not available to the operating system. For example, PCI Express support will reserve 2. MB depending upon the graphics adapter. Due to this Windows always displays less than 4 GB RAM as the amount of usable memory. Depending upon your hardware, anywhere between 2. GB and 3. 5 GB of RAM will be available to the OS. But, what if you have more than 4 GB RAM? Even on a system with 3. GB RAM, 3. 2 bit editions of Windows will display less than 4 GB of memory. This is a known limitation of the Windows Vista and 7 x. Microsoft claims that it is not their fault and is instead a limitation of the 3. At first glance this seems correct. GB of RAM (2. 32 = 4. G). However, this is not actually true. The main reason being a feature called Physical Address Extension (PAE). PAE makes it possible to address more than 4 GB of memory using 3. Instead, the registers store linear addresses, which are mapped to physical addresses using the page table. This feature has been available since the days of Intel Pentium Pro. In x. 86 processors additional address lines are provided so that up to 6. GB can be addressed when using the PAE mode. If you want to learn more about Windows memory addressing, go through Geoff Chappell’s notes. Windows Vista and 7 have two kernels – one which doesn’t use PAE and one which does. They are NTOSKRNL. EXE and NTKRNLPA. EXE respectively. Both of them reside within the Windows/System. Can you guess which one you are using? If you have a modern machine, then chances are that Data Execution Prevention (DEP) is enabled in your system and in that case you are already using the kernel with PAE enabled. How to Enable More Than 4 GB Memory. Before getting started, keep in mind that this patch involves modifying the kernel. Do no proceed unless you are confident. Most security products will identify these patches as malicious since they modify the Windows kernel. Download the appropriate patch for your system (links at the end of this post). I haven’t tried the Windows Vista patch, but I can confirm that the Windows 7 patch works. The Windows 7 patch is in Russian language. To begin patching click on the big button (refer to screenshot). After this a command prompt window should appear. Press Y. On restarting the system, you should see two entries in the Windows Boot Menu – one being the older configuration and the other being the one with support for more than 4 GB RAM. If you don’t want to be prompted every time, press Win + R, type msconfig and hit Enter. Under the Boot tab, reduce the timeout value (to something like 3 sec). If you wish, you can simply get rid of the older configuration by deleting it. But I wouldn’t recommend this. If you get a water mark (Test Mode) on your desktop after restarting, type mcbuilder. Start Menu and press Enter. Windows Vista Patch. Windows 7 Patch: Step 1 (Click on the button)Windows 7 Patch: Step 2 (Press Y)This patch will allow the OS to use more than 4 GB of memory. However, it does have a limitation – more than 3 GB of memory cannot be allocated to a single application. This patch is mainly targeted at systems with more than 4 GB of RAM. However, in some cases installing this patch on 4 GB systems will also lead to an increase in available memory (which may not necessarily result in performance improvement). This may appear to be a bit strange since Windows 7 and Vista are technically capable of addressing up to 4 GB of memory. Obviously, there is a logical explanation for this behavior. But, I won’t discuss it here. Refer to Geoff Chappell’s notes on Physical Memory Map if you wish to explore the issue in detail. Warning: The patches described in this article are kernel patches. They may result in unexpected hardware issues and expose your system to malicious exploits. Download Links: 4. GB Memory Patch for Vista 3. SP1 and SP2)4. GB Memory Patch for Windows 7 3.
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November 2017
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