As you know, starting with the version of Windows XP, Microsoft is constantly releasing so-called system updates and service packs. However, it is worth noting that for Windows 7, an update error for some reason is much more common than in other OSs. What to do with this, we will understand now.
Why does Windows 7 need an update?
Whereas earlier system updates concerned most of the security system, recently (in particular, for Windows 7) they even affect some basic device drivers, as well as specialized platforms such as Microsoft .NET Framework, which are necessary for some programs and applications to work.
As for the problems, these are mainly errors of the “Windows 7 Update Center” and the file itself, which is responsible for starting the search process and installing updates on the system. Now we will dwell on the causes of errors and solutions to some of the most common problems in more detail.
Error installing Windows 7 updates : reasons
If we talk about the reasons, unfortunately, there can be a lot of them. First of all, this should include a disabled automatic update, damage to the update file under the influence of viruses and malicious codes, mutual conflicts of the firewall, antivirus and update service, incorrect completion of the update process, etc.
Despite the fact that in Windows 7 the update error may be present in different manifestations, for each situation you can find the most suitable effective solution to the problem.
Check for automatic updates
First, consider the simplest situation. It may well be that the automatic search and installation of updates is simply disabled. To check these parameters, it is necessary to use the “Update Center”, where the line of the update method should contain either the automatic start parameter or the search parameter followed by the installation offer.
Note that even if such parameters are applied, the system immediately starts scanning for official updates on the Web, or rather, on the official Microsoft Update Center website, since the system initially addresses it.
Manual update
If in Windows 7 the update error after turning on the automatic mode remains, you can use manual search.
If everything goes smoothly here and the system prompts you to install the found updates, you just need to click the appropriate button. If, after this, the problem persists, more effective measures will have to be taken.
First of all, you need to check the system drive (on which, in fact, Windows 7 is installed) for errors. To do this, it is better to use the command line, rather than the properties of the disk, called through the "Explorer". For example, in the "Run" menu, you can write the command chkdisk c: \ f, which allows you to not only check, but also automatically fix system errors.
If the error repeats again and again, the reason for its occurrence may be that the file itself, which is responsible for starting the update process, is damaged. In this case, you need to perform a deep scan with any antivirus software, but it is better to use utilities that have the general name Rescue Disc, which are launched even before the system starts from optical media.
Firewall and antivirus issues
An equally common situation, when in Windows 7 an update error appears even after all of the above actions, there is a process conflict hidden from the user's eyes with a regular antivirus or firewall.
It is clear, after all, that the updater refers to a reliable source (in this case, directly to Microsoft resources), so that before starting the update process they can be turned off for a while, but only if the preliminary scan showed that there are no viruses and threats.
Error after updating Windows 7
Now directly about the most common mistakes, not counting what was described above. Windows 7 update error codes are a fairly large database, let’s take a look at the three most common ones.
Error 643 is related to the inability to update the Microsoft .NET Framework. Other components of the system may be updated, but it is its update that causes the error. It should simply be removed from the system and installed again, after downloading the latest version from the official Microsoft website. By the way, with regard to removal, it is better not to use standard tools from the "Programs and Features" menu. In this case, advanced uninstallers are useful, removing absolutely all residual files and registry keys from the system.
One of the most powerful programs of this type is the iObit Uninstaller utility, which has a special Forced Uninstall mode.
No less common is the error code 800b0100. In this situation, the most acceptable solution would be to use automatic fixers for problems such as Fix It or System Update Readiness Tool. In most cases, they are able to fix problems automatically, even without user intervention.
But the biggest headache for many users is the error code 0xc0000005. It appears after installing updates in the system. As a rule, this type of error is caused by updates in the form of packages KB2859537 and KB2872339. Their removal and allows you to get rid of annoying errors.
The easiest way is to type wusa.exe / uninstall / kb at the command line: 2859537 or the same, but only for the KB2872339 package (of course, you must log in as administrator). If this does not help, you will have to use the update log, in which all packages should be sorted by date. Most likely, some last update causes failures. Now you need to remove the packages one at a time, each time restarting the computer until the error disappears (you can use the same command line). When the problem is fixed, it will be possible to install the updates again in manual mode, but exclude the problematic packages from the list.