Everything You Need To Know

The mfc71.dll is a crucial issue for Microsoft Visual Studio and any program or application that uses it. Usually, the error message is caused by a missing file.To fix mfc71.dll you will need to repair or replace the DLL.

"mfc71.dll not found"

You've probably received this message because the file has been corrupted or accidentally deleted by you or a program.

Sometimes, improper installation or uninstallation is the cause. Given that many programs use this file, it might be difficult to determine which program might be the cause. However, if your error occurs during a specific program, this program is the most likely cause.

Try uninstalling and reinstalling the program to see if this resolves your error.

Download the latest version of the program

It is better to be sure that your program is current.

Download updates, service packs or patches to the program failed. It could be possible that the error was corrected in the recent update.

Install all updates until Windows. Sometimes the updates will include repairs and fixes for the registry files and .dll.

If your message contains an error message including the bcmwltry.exe file, then you need to reinstall your wireless drivers: Broadcom NIC. It is a known issue, so if this is the nature of your error, be sure to follow the download instructions on the website of Broadcom.

Upgrade or update your Internet Explorer. Dysfunctions that can occur when using older versions of IE.

Clear Your PC viruses

The virus is still likely, especially if you browse sites often random. To prevent infection, maintain a firewall to high security in place at any time. Sometimes, restrictions may be annoying, but it's always better safe than sorry.

Run a deep analysis on your computer a few times a month. This will help to remove suspicious files like that bunch in your temporary folders and registry system.

Although there are several free programs of antivirus software on the Internet, they are often more specialized and a bit less user friendly. If you're new to antivirus programs, I suggest buying a program of mid-range to help you stay virus free.

Keep your record clean of corrupt files and resource hogging pieces. You can download a registry cleaner to fix errors mfc71.dll. A registry cleaner will replace and repair missing, infected or corrupted system files.

Optimize-Your-PC, with its Advanced Technology Cleaning Registry, set mfc.dll and speed up your PC, all in less than 2 minutes.

Recognize BSOD

This BSOD is divided to 4 parts.

I. BugCheck information
Hexadecimal number together with “STOP” is called bug check code or stop code.. This is the important thing in BSOD.

Every code for bug checker has a symbolic name individual.

Example above DRIVER_IRQL_NOT_LESS_OR_EQUAL represents 0×000000D1

II. Recommended user action

Provides a list of proposal for the repair the error.

III. Drive Information
A part that detailed information about driver. If the hardware driver file or software listed in this blue screen liability it is a cause to BSoD.

IV. Debug port and status information
Operation system will try to save system memory even for the file that be found on hard drive or one of COM ports.

We can open Task manager by just clicking the combination: CTRL+ALT+Delete. Sometimes while you're trying do that, you can get following message: «taskmgr.exe – Unable to locate component. This application has failed to start because VDMDBG.dll was not found. Re-installing the application may fix this problem.
Problem can be some spyware or trojan you have on computer and it opens many ports. To be sure if that is the problem – try Active ports software. You can find it on http://www.protectme.com/freeware.html.
If you didn't find any malware software that way, then probably it's some system file mistake. Faster solution in that case is following. Start Command prompt (You can do that with Start – Run – cmd), and type: sfc/scan-now . Click ENTER. While doing that, Windows installation disk have to be in your Cd-rom. Procedure will take about 20-30 minutes. After scanning, restart your computer and try open Task manager again. It should open without problems.

Many of us had got a situation like, your computer can't boot into windows XP or 2000 or even into safe mode, if you only get a blue screen or your computer just hangs, then performing a system repair may fix the problem. This will allow you to repair your operating system without you losing all your saved data or settings.

[Note]Performing a system repair will remove any updates you have previously installed which are not on your CD. All drivers will be reverted to their original versions and also some settings, like network and performance settings. It may also be necessary to reactivate windows as well.

A: What caused the problem

You should first try to find out what caused the problem. Most of the time when windows becomes unable to boot, there is usually a good reason. Often this can be due to hardware failure (bad hard drive, memory or CPU). If this is the case, using system repair will not fix the problem. System repair will only repair your operating system software.

B: Starting the repair process

You must boot from XP/2000 CD. Make sure you have the same version of windows which is installed on your computer ( XP home edition cannot repair XP professional). Place the CD into your drive and then restart your computer.

Before the windows logo appears you will be prompted to press any key to boot from CD, press any key.

C: Repairing your system

A blue screen will appear and start loading XP setup from from the CD.

RAID/SCSI/Unsupported UDMA users:

You will be prompted to "press F6 to install any third party SCSI or RAID drivers". Most users will not need to press the F6 key unless you are using RAID, SCSI or any unsupported ATA controllers, then you will need your controller drivers on a floppy disk. If you are not sure if you have RAID/SCSI, just let the CD load without pressing F6.

Once completed, you will see the windows setup screen. You will then be asked to setup windows, or repair windows using the recovery console, at this point select the first option, do not choose the recovery console option.

D:Select F8 to continue

Next, windows setup will find existing windows installations. You will then be asked to repair an existing XP installation or install a fresh copy of windows.

If no installations were found, you will not be given an option to repair. This will usually happen if the data or partition on your hard drive has become too corrupted.

That's all, the windows appears to be installing itself for the first time, but it will keep all of your data and settings. follow the prompts and when finished you should be able to boot into windows.

A) Fix startup and shutdown problems

Startup and shutdown problems aren't usually related – if your PC doesn't shutdown properly it tends to be annoying, but on the other hand a start up problem can lock you out of Windows XP completely, which could be cause for panic !

Fear not, however because armed with the right troubleshooting techniques you can get back into windows without putting your data at risk, plus discover how to go about fixing shutdown problems.

B)Cant boot, wont boot

Not all boot problems are catastrophic, but the most pressing concern is when windows is unable to start successfully. you may find it reaches a certain point in the process before inexplicably restarting, or it may throw up a blue screen with a STOP error on it.

Either way it’s bad news. When you first restart after encountering an error like this, Windows will throw up a boot menu that’s designed to help you get around the problem. It will apologize for not loading successfully and give you a number of options to choose from.

If Windows fails to start successfully, the boot menu gives you more startup options.

It may seem silly, but the first you do is choose “Start Windows Normally”. Sometimes a glitch that prevented you from loading Windows can resolve itself. so the next time you boot it’s gone. If this is the case, breathe a sigh of relief, but be wary: the problem may resurface or be indicative of something else.

The next option to try is “Last Known Good Configuration”. This restores the settings that enabled Windows to boot successfully last time, and in most cases will fix your problem. If you installed any hardware or software, or made changes to the way programs run or behave, you’ll find these have been lost. However, as the most recent changes to your system are likely to have caused the problem, this isn't necessarily a bad thing. Try installing the program or piece of hardware again – if the problem persists, visit the manufacturers web site for more help and support.

C)Safe mode fixes

If “Last Known Good Configuration” doesn’t work, then try booting into Safe Mode. You’ll see there are three choices: basic Safe Mode, Safe Mode with Networking, and Safe Mode with Command Prompt. All three load only a basic set of drivers and services, plus no start-up programs are loaded, so in most cases you will at least be able to access your PC in this mode.

If you choose the Networking option and you’re physically connected to your network by an Ethernet cable, you’ll have access to the Internet if you connect through your network (as well as the network itself).

If you can get into Safe Mode, log on as either your own user account or the master Administrator account. You’ll then have a number of options to try. If you suspect a virus or similar piece of malicious software, you may be able to manually run your security tool and see if it can detect and remove the problem.

You can also launch System Restore from safe mode. Launch System Restore by clicking Start > All Programs > Accessories > System Tools > System Restore.

System Restore may offer a quick and easy solution to your start-up woes

If you can’t even get into Safe Mode, try Safe Mode with Command Prompt. This bypasses the basic Safe Mode interface to give you access to just the command prompt itself. If this works, launch System Restore using the following command: %systemroot%\system32\restore\rstrui.exe Once done make sure “Restore my computer to an earlier time” is selected before clicking Next. Choose the most recent Restore point and see if that eradicates the problem; if necessary reboot into Safe Mode and try earlier Restore points until you find one that works. Be warned: the further you go back , the more unrecognizable your system will be after the Restore has been performed: your data will be untouched, but programs, hardware, updates and settings installed since that Restore Point will either stop working or vanish completely from your system.

D)Wont boot at all

In the worst case scenario you wont be able to boot into any flavor of Windows at all, even safe mode. When this happens there are two symptoms that point to a corrupt Registry: first your PC continually restarts when you try to start it regardless of the option you choose in the Boot menu. If your PC doesn't automatically reboot, you’ll get a STOP error referring to the Registry or a missing or corrupt file.

In these circumstances your only course of action is to recover your system manually. You could attempt a repair installation of Windows following the step by step guide below – if your PC came with a recovery disc, try booting from that and looking for a repair or non-destructive option (if no option exists, do not proceed – a full destructive system recovery will wipe all of your personal files and settings).

The upside is that you should be able to boot into Windows again; the downside is that all of your updates – including any service packs you’ve applied – will have been removed. Not only will you need to visit Windows update to download them all again , but you may also need to reinstall some of your programs again in order for them to work properly.

I. Boot from Windows CD

If you have a genuine Windows installation CD, reboot with it inserted, and press any key when prompted to. Let setup load the initial files, then press enter at the welcome screen.

II. Choose to repair Windows

Accept the license agreement by pressing F8, then wait. When asked if you would like to repair Windows, make sure your current installation is selected before clicking R. Windows will now delete a load of files.

III. Let Windows repair itself

The rest of the process is identical to what happens when Windows installs from scratch.

E)Hardware problems

If you can’t get your PC to even recognize your hard drive – you’ll get a boot failure message appear before Windows even begins to load – then you may have a dead drive to deal with. If the drive has been making funny noises recently, this is the likely scenario, and the downside is that your data is now inaccessible unless your willing to pay hundreds or even thousands of dollars to a data recovery specialists to get it back.

Sometimes drive cables can become loose, so it’s worth opening up your case and making sure everything's securely plugged in before assuming the worst.

memory is another problem that can manifest itself in start-up problems. If you suspect memory is the cause of your problems download the free diagnostic tool on a working PC from http://oca.microsoft.com/en/windiag.asp – you can then transfer this to a floppy disk or CD, and boot from it on your malfunctioning PC. It’ll then test your memory and report any problems it finds.

Faulty memory should be replaced as soon as it’s been spotted. If you have more than one memory stick in your PC, try different combinations of memory in conjunction with the Windows Memory Diagnostics Tool to track down the faulty module.

If all else fails – you’ve recovered your data, determined there's no hardware issues, but still can’t get Windows to boot again – then bite the bullet and reinstall Windows XP from scratch.

F)Fix shutdown problems

Most Shutdown problems have been fixed by updates available through Automatic Updates (click Start, right click My Computer and select properties, Control Panel, then switch to the Automatic Updates tab). If your PC is fully up to date, but you still encounter shutdown problems, read on.

If your PC restarts instead of shutting down, then the likely culprit is a STOP error, By default Windows is set to restart when it encounters one of these, but if it’s preventing you from shutting down you need to take matters into your own hands.

First, force Windows to display the STOP error instead of restarting: open the System Properties Control Panel, switch to the Advanced tab, click Settings under “Startup and Recovery” and untick Automatically restart before clicking OK twice. When you next shutdown Windows, the STOP error should pop up. Make a note of it, and then visit http://www.aumha.org/a/stop.htm for more advice.

If your PC hangs during shutdown – in other words, it reaches a certain point in the process and then just stops for five minutes or more without powering down or displaying an “it’s safe to turn off your computer” message – then the problem could be caused by a program or process currently running on your PC. When your ready to shut down, try to end as many running programs as possible, including those that have icons in the notification area in the taskbar. If Windows can now shut down, you’ve traced the culprit to one of these programs.

If this doesn’t work, try running a diagnostic startup as described earlier and then immediately shut down. If Windows is able to do so, then something that starts with Windows and runs in the background is to blame. Once identified using the same techniques described for troublesome start-up entries, uninstall the program or look for an update or additional help at it’s website.

If this doesn’t work but your able to access Task Manager (press Ctrl+Alt+Del), then try ending individual processes from the Processes tab. Make a note of any processes that refuse to disappear, and do a search on Google to find out more about that process when you next start Windows. If all else fails at this point, and you have access to the shutdown menu try turn off computer from this menu.

Shutdown problems are numerous, and while non critical in the sense that you’re able to run Windows again afterwards, may be indicative of deeper problems with your system. For additional shutdown advice visit

http://aumha.org/win5/a/shtdwnxp.htm.