Windows 7 Fails to Boot – Fix Error Code 0×490

Error Code 0×490 indicates bad boot information, which does not let you access Windows 7. In this situation Boot manager is unable to find OS Loader and is stuck at the startup phase. By default or by command, it runs a repair process, which also subsequently fails.

Cause

An error occurred because the Windows 7 may not have been shut down properly, or rebooted automatically. On a Startup, it tried to repair the situation, but failed and was stuck on the repair screen. In the meanwhile, time timer went out and the process was never successfully completed.

Solution: Startup Repair

Boot manager failure obliges a startup repair through the installation or recovery disc. In this solution, your system is recovered by repairing and fixing the missed or corrupted system files. For this purpose, you would need an installation or recovery disc and make sure that BIOS is set to have CD/DVD drive listed first in the boot order. Comply with the further steps given below

• Insert Installation Disc or Recovery Disc to your CD/DVD Drive
• Restart and press any key when prompted to boot from the Installation/Recovery disc
• On the next step, select your Language preferences and click the Next button
• Click on the link stated as Repair your computer
• Select the operating system that you want to restore and then click Next button
• Next screen lists down certain System Recovery options. Among them, select Startup Repair
• This will scan your computer to attempt to find and fix any Startup problems, automatically
• To see the detailed summary of scan, click View diagnostic and repair details
• Click Finish button to restart your system

Solution: Master Boot Record

Master Boot Record or MBR is a boot sector, which contains necessary computer codes to start the boot process. A damaged MBR may be a reason for not being able to boot into Windows 7. By the following way, you can troubleshoot and repair MBR and enable a normal boot.

• Insert Installation/Recovery disc to your CD/DVD drive and boot from it
• Setup your Language preferences, click Repair your computer, and select the operating system
• Among the listed System Recovery options, select to launch Command Prompt
• In the black screen of command prompt, type BOOTREC.EXE /FIXMBR and hit Enter key
• You can also type BOOTREC.EXE /FIXBOOT to write a boot sector and start Windows normally

Precaution

Stop your computer to restart automatically, as this may raise certain problematic issues. Let you system display any error before restarting, if it is causing a reboot. Go to Control Panel and then click Advanced system setting. On its Advanced tab, click to access the Startup and Recovery Settings and Uncheck Automatically restart in System failure.

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How do I Fix Error 0xc00000e9?

The error code titled above is referred as an I/O error, and tends to appear when system is unable to make contact with certain components. A spoiled hardware, corrupted system files, and/or misconfigured BIOS/CMOS Settings lead to this issue. Once encountered, you may not be able to boot into your Windows operating system, and stuck on a blank screen with this error message on it. In another scenario, you may not be able to boot to Windows in a Normal mode, but through a Safe mode. In the first case, you would need to insert an installation media into your CD/DVD drive and boot through it. Technically, an operating system is booted from a storage device. If the storage device does not assist your computer by providing the required bootable files, it would end up in error code 0x00000e9.

Below are the causes and detailed prescriptions to address this issue. Before moving, make sure your CD/DVD Drive is not inclosing any unbootable disc, and set as the most preferred in boot order, if the system is not booting with the least bit.

Causes

There could be multiple reasons due to which this error resides in your computer.

• Your computer may have been under attack by one or more intruders (Viruses), which in result corrupts the registry data related to startup or boot in. Although, PCs nowadays are more secured under the safeguard of different well-known antivirus solutions; however, cent percent protection is not guaranteed.
• It may also devise from a badly written program. Users recurrently install and uninstall programs, applications, system tools, and their updates. Any of these may rise up, noncomplying with the standard regulations of your system. Consequently, a conflict rises between the system and application, harming system files that are vital for running Windows properly. Similarly, latest updates of even legitimate software can hold a fatal bug within it.
• Hard drives storing and holding our data have a limited life span. It can live more or less, depending upon its use and maintenance. A dying hard drive also refuses to boot you in. On the other hand, when we command our systems to shut down, they take a while to wind up the services/processes and saves essential configuration files. Let the system to complete this process and do not cut the power off, as this may cause in losing such important files.

Solutions

Since error 0xc00000e9 occurs due to multiple reasons, there is no particular solution. You can go through following processes one by one to see which actually helps you get out of the issue:

Rescue Boot Disc

Boot your computer through an antivirus rescue boot disc, following a systematic scan to detect and remove viruses. In order to assure malware-free directories, try scanning with multiple antivirus solutions.

• Search and download a reliable antivirus solution for the internet
• Update the virus definitions for the antivirus program.
• Set in the bootable rescue tool on a removable storage
• Restart your computer and boot in using bootable rescue tool
• Scan your PC with antivirus and wait until the process completes
• Click to remove the detected threats

Check your Hard Drive

If you are unable to resolve the issue, even after the implementation of all prescribed practices, it points out to your hard drive encompassing errors. To see whether your storage device is up to the mark or not,

• Boot to your system via Safe mode
• Open your Computer directory, right click your drive, and go to its Properties
• Access Tools tab in Properties window, and click Check button under Error-checking option.
• On next dialog box, check both options stating, Automatically fix file system errors and Scan for and attempt recovery for bad sectors
• Click Start button to begin the scan

Please be tolerant, as this process of scanning and fixing may take some while, depending on the size and possible errors on your hard drive. If you find out that the drive is factually damaged, please replace it before any further inconveniences.

Remove Badly Written Program

If you suspect that the error occurred due to a badly written program, you need to first identify that program and then remove it. For this purpose, carry out the following steps

• Go to Advanced Boot Manager  by pressing F8 key, while your Turn on your PC
• Among different boot options, choose to boot in a Safe Mode
• This will result in a boot with minimum process and services loaded
• Go to Control Panel and click Uninstall a program under Programs category
• Among the list of applications, pinpoint the recently installed applications after the installation of which, errors incurred. Right click such items and choose to Uninstall

Repair your Registry

Windows Registry is a database that stores the entries containing paths to executable files, whether of drivers, system files, or applications. If these entries are decayed with broken paths or paths to non-existing data, it can result in the subject error. It is therefore, necessary to regularly examine and maintain the good health of registry records. Scan your system registry using Microsoft Pinpoint listed free software such as Registry Recycler and fix registry errors detected by it.

Repair Your Computer

Once you have discarded the infections from your system, removed dishonored applications, and repaired registry records, you now need to recover the damaged files of your system. For this purpose, you have to boot your computer with a Windows installation disc and choose to repair your computer. Windows startup options provide several utilities for such tasks.

• Restart your system, inserting Windows installation disc into the CD/DVD Drive
• Boot from CD/DVD Drive (Windows installation disc) to view Advanced Recovery Options
• Go for the first option stating Startup Repair, to repair your computer
• Please wait, as this tool scans the system files and repairs them automatically
• Click Finish button, when done

System Restore

If this does not solve the problem, try to reinstate your settings via a System Restore. In this regard, you must have first created a restore point in an earlier good time. System restore route can be located in Windows startup options, and can easily be carried out by following the given instructions.

• Go to Advance Recovery Options, while you boot from Windows installation disc
• Go for the option stating System Restore to reverse your settings
• The next screen lists the restore points created at different times
• Choose a point where you want your system to be restored (preferably most recent)

Windows Re-Install

If the problem persists, go for a clean install. This would permanently remove old settings and data in your system drive, but will most probably solve your issue. Once you have re-installed Windows, you can revive your settings from a backup stored on a removable disc or drive, if any.

• Go to Advance Recovery Options, while you boot from Windows installation disc
• Go for the last option stating Re-install Windows, for a fresh set up
• On the next screen, confirm the input language and click Next button
• Please wait, while your computer copies Windows files and extracts them
• Type a username, computer name, and proceed with Next button
• On the next screen, choose from the Windows Updates settings
• Select your Time Zone, set up correct time, and click Next
• Select your computers current location on the network, and move with Next

Applying these steps would definitely help you to cope up with seeing irritating registry error.

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How to Fix HAL.dll Missing Error

Hardware Abstraction Layer (HAL) or hal.dll is a Windows system file, which implements a number of hardware functions. Although drivers for most of the hardware are contained in files with .sys extension, a few core drivers are compiled into hal.dll.

A corrupted or missing hal.dll file can cause many troubles in your operating system, with frequent annoying messages or preventing you to boot into Windows normally. This article contains certain ideas, suggested to handle this issue in an accomplished manner.

A corrupt or missing hal.dll file is easily identifiable, as Windows displays the error messages stated below.

• Cannot find hal.dll
• Hal.dll is missing or corrupt

Causes

It is obvious that the error is caused due to misbehaving DLL file. It can either be attacked by a virus or conflicted with a badly written program / application.

• The above noted error can also result from a damaged Hard Drive
• In most of the cases, a missing hal.dll is due to issues with Master Boot Code.

Solutions

The only way to get your PC going in such a situation is by recovering or repairing the hal.dll file. The different ways to do so are described underneath.

• It is quite possible the issue, which seems a load of trouble, is nothing but just a fluke. To escape a major workaround, Restart your computer by turning it off and back on with a moment delay. If so, the system will not bother you anymore. But if the problem persists, try implementing following measures.
• Enter your BIOS settings and check out the boot sequence. It is quite possible that you have changed the boot order while connecting an external storage drive, and overlooked to revert to the prior settings. In this situation, change boot order to your current drive with system files on it.
• Boot with System Recovery Options in Windows 7, or Advanced Startup Options in Windows 8. These options embed some of the Windows useful tools with automated fix-it capabilities. Choose to fix with Startup Repair in Windows 7 and Repair your PC in Windows 8.
• Update the Volume Boot Code to BOOTMGR by booting with Command Prompt in any version of Windows. In the black screen of Command Prompt, type the command bootsect /nt60 sys and hitEnter to update it for you. Now Restart the computer and it should boot normally.
• Check your hard drive for any errors, as it may not let your PC to act in a usual way. In this regard, reboot with Command Prompt and execute the command CHKDSK C: /R. It will examine your system drive, detect errors in it, and try to fix it. Please not that C: refers to the drive containing system data.

If CHKDSK utility has actually discovered errors or bad sectors on your hard drive, but is not able to recover it, you would need to replace your hard drive and carry a new and clean install of Windows.

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Fixing Error Code 0x800F0906 while Enabling .NET Framework 3.5

A user of Windows 8 operating system occasionally comes across to the above noted error code. This code occurs when Windows is unable to download the required files from Windows Update. A detailed clarification of .NET FRAMEWORK is indicated below to understand the overall phenomenon of Error Code 0x800f0906.

Particular applications require a specified version of .NET FRAMEWORK for assured compatibility. Windows 8 comes with an incorporated .NET FRAMWORK 4.5, although, there are certain applications necessitating .NET FRAMWORK 3.5. It is to be noted that in Windows 8, both versions can co-exist.

In this connection, there are a couple of methods to install .NET FRAMWORK 3.5, where both of these oblige an internet connection.

METHOD 1

INSTALLING ON DEMAND – Once an application, compatible with .NET FRAMEWORK 3.5 is executed, it appears with a prompt window asking to install the said version.

• Run the executable file of application compatible with .NET FRAMEWORK 3.5
• The application will fail to start, requiring you to install this specific version of .net framework
• In the same message box, there would be an option stating Get .NET FRAMEWORK 3.5
• On clicking this option, you will be redirected to its concerned webpage
• You can now easily download and install this version of .net framework from its servers

METHOD 2

ENABLING THROUGH SYSTEM SETTINGS – .NET FRAMWORK 3.5 can also be manually enabled through the Control Panel. For this purpose,

• Go to Control Panel, locate, and select to open Programs and Features menu
• In the left pane, additional settings can be viewed by click on Turn Windows Features on or off
• In the appeared list, the option for .NET FRAMEWORK is to be checked and saved
• This will also resultantly, connect to the server for downloading the required files.

By opting either of the above methods, the user might be stimulated with the Error 0x800f0906. This is due to failure in connecting to the servers for copying the prerequisite installation files. The reason might be a real problem in the Internet Connection or configuration of the user’s computer to use Windows Server Update Service (WSUS) in a replacement of Windows Update Service.

SOLUTION 1

In such case, the user is initially incited to ask the administrator for reconfiguring the system to use Windows Update instead of WSUS, and move on to a manual tactic to enable .NET FRAMEWORK 3.5. To do so, a Windows 8 DVD needs to be inserted and specified guidelines need to be followed.

• Insert a Windows 8 installation disc in CD/DVD Drive
• Open Start Screen by pressing Windows key on the keyboard
• Type ‘cmd’ to conduct a new Search
• Locate Command Prompt, Right Click and choose ‘Run as Administrator’
• In the black screen of Command Prompt, type
• “Dism /online /enable-feature /featurename:NetFx3 /All /Source:D:\sources\sxs/LimitAccess”

Note: D: in above stated command line indicates the drive containing installation media.

SOLUTION 2

As an alternative solution, you can predetermine a location of a shared folder or a WIM file, containing the requisite data for installation. This can be done by enabling a group policy setting and then providing a complete alternative path towards the installation data. To practice this method,

• Press Windows key + W to conduct a new Search
• Type ‘gpedit.msc’ in the Search box, and locate to open Edit Group Policy
• In the left pane under Computer Configuration, expand Administrative Templates
• Click to highlight System in the right pane
• In right pane, locate Specify settings for optional component installation and component repair
• Double click to open and then Enable the policy
• In the same dialog box, under Alternative source file path, enter the correct network installation path(e.g. \\server\Win8InstlMedia\sources\sxs)
• Click OK to save your changes and Exit Local Group Policy Editor

Embedded below is the video clip showing a practical example of how to Execute these methods and solutions correctly.

SOLUTION 3

You may not find Local Group Policy Editor in your copy of Windows, as it features only in certain versions of Windows. Another way to perform this function manually is described below.

• Press Windows key + W to conduct a new Search
• Type ‘regedit.exe’ in the Search box, and locate to open Registry Editor
• In the left pane of Registry Editor, expand through HKEY_LOCAL_MACHINE to reach;
• SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5
• In the right panel, create DWORD Values and name them CBS, Install, and SP
• Double click each entry to Modify and put 1 as their Value data
• If the values already exist, make sure their Value data is set to 1
• In the same area, create a string value and name it as InstallPath
• Give the correct path in its Value data field (C:\Windows\Microsoft.NET\Framework\v3.5)
• Click OK and Exit Registry Editor

Above declared techniques would have expectedly helped you in coping against error code 0x800f0906. It is again notified that you can keep both the versions at the same time.

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