Last updated on May 4th, 2015

In a previous tutorial I had described how you can update Windows 8 to Windows 8.1 using the Standalone installer (Windows 8.1 Update 1 Standalone) in the case that Windows cannot find & install Windows 8.1 automatically via Windows store. But -since then- I have realized that in some cases you cannot update to Windows 8.1 because of an 'not applicable to your computer' error when you try to install the KB2919442 update. (The full error message is as follows: 'Windows Update Standalone Installer. The Update is not applicable to your computer').

Some days ago, I decided to troubleshoot and solve the 'Update not applicable to your computer' error, by applying two different solutions in two different installations (computers). To make the long story short and to be honest, I managed to force Windows 8 to download and install Windows 8.1 automatically in the first case by troubleshooting Windows Update problems (Solution 1) and in the second case by putting Windows 8 to an Unlicensed state (Solution 2).

In this tutorial you can find detailed instructions on how to bypass the 'Update is not applicable to your computer' problem in Windows 8 OS.

Before you continue to apply the fixes below, make sure that:

How to Connect Laptop to Bluetooth Speakers on Windows. The Windows computer must support Bluetooth. Although most modern machines do, some business-class desktop PCs and some old consumer-class PCs do not. If you can't find the Bluetooth settings, purchase and install a hardware USB receiver to enable Bluetooth compatibility. To use the hotfix in this package, you do not have to make any changes to the registry. Restart requirement You may have to restart the computer after you apply this hotfix. Hotfix replacement information This hotfix does not replace a previously released hotfix. Do not connect to the laptop to non-factory charger. Even if the voltage and current match the original charger and it is possible to plug it in, there is a high probability that the circuitry board for battery control will fail. Or worse, if they don't match, anything can burn, including the motherboard. Do not let your laptop work after.

1. Your Windows 8 System language is supported by Windows 8.1 Update*. To do that:

• Navigate to Windows Control Panel and click Language.
• View the list of supported languages below to find out if the installed language is supported by Windows 8.1. If your language is not supported, then read this tutorial on how you can change language in Windows 8.

* Windows 8.1 supported languages: Arabic, English (United Kingdom), English (US), Chinese (Simplified), Chinese (Traditional), French, German, Japanese, Korean, Portuguese (Brazil), Russian, Spanish, Swedish, Turkish.

2. Your computer has the correct Date and Time.
3. Your computer has the right Time Zone according to your country.
4. The Windows Update service is running. (Control Panel > All Control Panel Items > Administrative Tools > Services).
5. Ensure that you have the appropriate Windows 8.1 system requirements in order to install Windows 8.1. Above all check that your CPU supports PAE, NX, and SSE2 and make sure that they are currently enabled in BIOS. {Look under Advanced Settings or under Security settings and Enable NX (No eXecute bit). The name may differ by computer manufacturer, so the name could be Execute Disable or No Execute Memory Protect, Execute Disabled Memory Protection, EDB (Execute Disabled Bit), etc.}

How to solve the Update is not applicable to your computer error.

Solution 1: Troubleshoot Windows Update problems and force Windows 8 to find and install Windows 8.1 through Windows Updates. (Time consuming solution)

Solution 2: Put Windows to Unlicensed State by using a generic product key and then install Windows 8.1 from store. (My favorite solution).

Solution 1. Troubleshoot Windows Update problems and force Windows 8 to find and install Windows 8.1 through Windows Updates.

This solution was applied on a Windows 8 32 bit based system that gave the 'Update not applicable' error.

Step 1: Install all Available Updates via Windows Update.

First force Windows to check for updates and then Install all important and all optional Updates that are found. During this procedure DO NOT bypass the installation of Microsoft .NET Framework (e.g. Microsoft .NET Framework 4.5.2 for Windows 8 (KB2901982).

To force Windows to check for updates:

1. Press Windows + R keys to load the Run dialog box.

2. Type the following command to open Windows Update and press Enter.

• wuapp.exe

3. Press Check for updates.

4. Choose the Important Updates link.

5.Uncheck and re-check the Name checkbox to select all important Updates and then choose Optional.

6.Uncheck and re-check the Name checkbox to select all Optional Updates found and then press Install.

7. Be patient while Windows install updates.

8. After Windows Updates are installed, perform the same procedure until you install all available updates.

Step 2. Install prerequisite updates for Windows 8.1.

1. Download and install the following prerequisite updates for Windows 8.1*:

• * Note: If you still receive the 'update not applicable' error, continue to the next step.

Step 3. Install all available App updates from Windows Store.

Navigate to Windows store and install all updates: To do that:

1. Open Windows Store from start menu.

2. Click Updates link.

3. Select and install all available updates.

4. After installation, close Windows store and reset (refresh) Windows store content. To do that:

• Press Windows + R keys to load the Run dialog box.
• Type the following command to clear the Windows Store cache and press Enter.
  • wsreset.exe

5. Close Windows Store and restart your computer.

Download universal control presonus. 6. After the restart, check if Windows 8.1 update appears now in Windows store, otherwise continue to the next step.

Step 4: Run System Update Readiness Tool to fix Windows Component Store Corruption.

1. Open an elevated command prompt: to do that:

• Right-click at the screen's bottom-left corner and from the pop-up menu, choose “Command Prompt (Admin)”.

2. At the command prompt window, type the following command & press Enter:

• Dism.exe /Online /Cleanup-Image /Restorehealth

3. Be patient until DISM repairs component store.

4. When the operation is completed, you should be informed that the component store corruption was repaired.

5. Close command prompt window and restart your computer.

6. Force Windows to check for Updates (Step 1) or see if Windows 8.1 is available now in Windows store. If the update is still not available then leave your computer open for a couple of hours. (In my case I had to leave the computer open and untouched for at least 10 hours and after that when I proceeded to check for updates – again – Windows prompted me to install Windows 8.1 automatically).

I hope that you were able to update to Windows 8.1 by now. If not, then try solution 2 below.

Solution 2. Put Windows to Unlicensed State by using a generic product key and then install Windows 8.1 from store.

This solution was applied on a Windows 8 32 bit based system that gave the 'Update not applicable' error.

I decided to check and apply this solution because according to Microsoft: If you own a Windows 8 Volume license (VLK) edition you CANNOT upgrade to Windows 8.1 by using the Standalone Installer and the only way to upgrade to Windows 8.1 is to download the Windows 8.1 ISO file and perform a clean installation.

So, according to that information, I first removed the currently installed product key and then I used a Retail product key to upgrade to 8.1. After doing that, Windows finally found the Windows 8.1 upgrade (available in Windows store) and then I updated without any problems! Finally, (after Windows 8.1 installation) I removed the retail product key and and then I proceeded to re-activate Windows by using the product key that came with the computer. Here is what I did:

IMPORTANT: Prior to removing the installed product key from your Windows 8 installation, ensure that you have noted the current product key, because you have to type it, after Windows 8.1. upgrade, in order to re-activate your Windows copy. If you don't know how to find your product key, then read this tutorial.

Note: Follow the steps described below at your own risk. I 'm not sure (yet) if this solution works in all cases. (I wait for your comments).

Step 1. Remove Windows 8 product key.

Please note that by removing the product key you set Windows to a 'never activation' state. You can use the same product key at any later time to activate the same computer.

1. Open an elevated command prompt:

• Right-click at the screen's bottom-left corner and from the pop-up menu, choose “Command Prompt (Admin)”.

2. At command prompt window, type the following command & press Enter:

• slmgr.vbs /upk

You should receive a successful message.

3. Then type the following command & press Enter, in order to specify a new product key for Windows.

• slmgr.vbs -ipk xxxx-xxxx-xxxx-xxxx-xxxx

(As “xxxx-xxxx-xxxx-xxxx-xxxx” type one of the following generic Windows 8 keys)*

* Note: These keys are generic, so you can use them legally only for Windows 8.1 installation. You cannot use the Windows 8 keys below to activate Windows.

Retail
Windows 8: FB4WR-32NVD-4RW79-XQFWH-CYQG3
Windows 8 Professional: XKY4K-2NRWR-8F6P2-448RF-CRYQH

OEM
Windows 8: 46V6N-VCBYR-KT9KT-6Y4YF-QGJYH
Windows 8 Professional: V7C3N-3W6CM-PDKR2-KW8DQ-RJMRD

4. You should receive that the installed product key xxxx-xxxx-xxxx-xxxx-xxxx installed successfully.

5. Close command prompt window.

4. Then reset Windows store contents:

• Press Windows + R keys to load the Run dialog box.
• Type the following command to clear the Windows Store cache & press Enter.

• wsreset.exe

5. Close Windows Store and restart your computer.

6. After the restart, open Windows store. Windows 8.1 update should appear now. If not, then navigate to this link: http://windows.microsoft.com/en-us/windows-8/update-from-preview. There, you should receive a pop-up message informing you that 'Your PC has Windows 8, but the info of this page is about Windows 8.1'. Choose Update now to Windows 8.1 for free.

7. Proceed to upgrade to Windows 8.1.

8. You 're done!

Other things to try if Windows 8.1 update is still not available in store:

1. Leave your computer open for a couple of hours.
2. Run again the System Update Readiness Tool (DISM) tool. (See Step 4 above).
3. Reset Windows Updates Components by running the FixIt tool from this link and restart your computer (https://support.microsoft.com/kb/971058).
4. Final advice: If after performing the above solutions, you still cannot update to Windows 8.1, then perform a Windows refresh or re-install Windows 8.1 from scratch by using the Windows 8.1 ISO file.

After Windows 8.1 installation:

Step 2. Re-Enter your own product key and re-activate Windows.

After Windows 8.1 installation you have to re-enter your own product key and re-activate your Windows copy. To do that:

1. Open an elevated command prompt.

2. In the command prompt window, type the following commands and press Enter:

• slmgr.vbs /upk
• slmgr.vbs -ipk xxxx-xxxx-xxxx-xxxx-xxxx

(Where “xxxx-xxxx-xxxx-xxxx-xxxx” is your own valid product key)

3. Then type the following command to activate Windows and press Enter.

• slmgr.vbs /ato

4. Wait until your Windows 8.1 copy is successfully activated. *

* Note: If you face problems with activation then you have to activate Windows using the phone method.

Good luck!

Even though sessions vary with usage, everyone needs to step away from their computers at some point. Many of our users wonder if it's a good idea to leave their computers on, or turn them off. The answer to this question depends on many factors ranging from electricity bills to concerns about wear and tear. The following sections address the 'on or off' debate from many viewpoints, allowing you to decide what works best for you.

Power concerns

Associated costs

One of the biggest contributing factors when deciding whether or not to turn off your machine is the electrical cost. A bill for electricity can be expensive, and a computer like many household electronic devices adds to the cost. Unless you'll be away for a very long time from a computer that's on, the difference in price isn't a large concern. Orion usb devices driver updater. However, if you're looking to save a few dollars a month, shut it down.

If you decide to leave your computer on all day, we recommend turning off the monitor if you're leaving for more than half of an hour.

Time to resume

In our opinion, the time for your computer to resume working is a bigger factor than the cost of electricity. For instance, if you open and close your laptop frequently, you don't want to have to reboot it completely each time. Knowing a bit about the different power states of a computer should help you in your decision.

• Sleep - All open applications and files are stored in RAM, and the rest of the computer components are put into a low-power state. This option is best when you step away from your computer for a short time because it allows work to be resumed almost immediately.
• Hibernate - With hibernate mode, all open applications and files are copied onto your computer's boot drive, and the rest of the computer is essentially shut down. This option is good if you'll be away from your computer for a short time.
• Shut down - When you shut a computer down, all files and applications are closed, and power to the computer's internal components is cut off. Shutting down is a good option if you'll be away from your computer for an extended period (e.g., more than eight hours).

The time to resume from different power states is much more significant on hard disk drives than it is on solid-state drives. Since boot times on modern SSDs are so fast, shutting down your computer is not nearly as much of a factor.

Leaving your computer on overnight

Our recommendation is to turn off your computer when you go to bed, as it saves you a bit of money on your electricity bill. However, for tasks to run during the night (e.g., backup, ScanDisk, Defrag, updates, or a virus scan), you'll need to leave your computer on while you sleep. Unless you don't mind these tasks being performed during the day.

Will turning off a computer wear down moving parts (e.g., fans)?

No. The only moving parts that caused an issue internally were within a component, not the computer itself. In older hard drives, the head would come into contact with the disk platter upon shutdown, which caused it to wear. However, any hard drive manufactured today doesn't have this issue.

Does turning off a computer wear down the power button?

Before 1994, it may have been beneficial to leave the computer on due to potential power switch related issues associated with certain manufacturers that caused the power buttons to break early. However, this issue was only applicable to a very small portion of oldOEM computers, and today is no longer a problem. Power buttons can still wear out, but they have a life cycle that outlasts the other components of your computer.

Does turning off a computer cause soldering cracks?

No. Solder can withstand changes in temperature; turning a computer off frequently does not harm it. For example, many individuals turn their TV on and off each day, sometimes several times. Much like a computer, components inside the TV get hot and cool down, and these devices rarely have problems.

Will turning my computer off help prevent a power surge?

No. A power surge destroys electrical devices, regardless of whether they are on or off. Having the power cord connected to a surge protector can safeguard a computer from an electrical surge.

If a storm causes a blackout or brownout, it can cause problems with a desktop computer. To prevent these power-related problems from affecting a computer, use a UPS (uninterruptible power supply).

Computer power misconceptions

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'As the computer boots, it takes more power.'

This statement is not true.

'Turing off my computer causes power surges.'

This statement is also untrue. See our surge page for information about power surges.

'Leaving a computer on causes it to overheat.'

Unless a fan within a computer fails while it is on, the computer will not overheat.

'A laptop is different than a desktop it should be turned off.'

Although physically different, a laptop can also remain on 24/7, and all information mentioned above still applies. The exception here, of course, is if you're running a laptop from the battery (not plugged in). In this case, the laptop is not going to be able to run all day, and we suggest conserving your battery usage.

Additional information

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• See our power supply definition for further information and related links.