Archive for October, 2009

Guest Writers-Bloggers Wanted

We are looking for technology-enthusiastic guest writers to contribute articles to tech21century.com blog. If you like technology and have some tips, tricks, news, or ideas to share with other technology-minded people, then we would be happy to host your article post to our blog site.

Benefits for You:
Unfortunately we can not pay for your blog post. What we can offer however is one Do-follow link back to your own website. Our blog gets over 1000 unique visitors daily (and keeps growing), so you will get excellent exposure and advertising for your own web properties.

Getting a Do-Follow contextual link from a related authority website is the strongest Search Engine Optimization factor for your own web property. So, you will experience a great upwards movement in Google search results for your keywords, resulting in more organic traffic for your website.

Benefits for Us:
Content is king but creating content continuously is very time consuming. Unfortunately we don’t have much time to keep posting content on this blog. Your guest blog posts will help us keep our website fresh and updated all the time. So this is a real win-win situation for both.

Requirements:
We require that the blog posts be technology related and around 250-300 words. Also, the post MUST be unique and not posted anywhere else. Please contact us at the form below if you are interested. Just include the topic you want to write about and we will send you more instructions how to proceed.

How to speed up your Windows Vista

Windows Vista has become a widely used operating system that is supported by most well known laptop and desktop makers. The one major complaint that is heard from lots of people using Windows Vista is that it is very slow when booting up.

Vista had some majors flaws when it was first released, which turned many people off it. Although some patches were released that fixed them, the time it takes to boot up when turned on still is a very annoying problem. Here are some potential solutions that may help in speeding up Windows Vista.

If you are using an older computer with Vista running on it, then one problem that may be slowing it down is the limited ‘RAM’ (random access memory) that it is working with. So, I recommend freeing up some memory by removing some unnecessary features.
By disabling the Windows Vista side bar for example you can save some memory space. The sidebar is turned on by default, but most of the software in it is never used by most computer owners. You’ll want to ‘right click’ on the sidebar, then hit ‘close’. There should be a dialogue box that states, “start sidebar with windows start”, make sure that the box beside it is unchecked.

Another possible solution is a feature of Vista called Windows ReadyBoost. This is the actual feature that Microsoft recommends to add some extra memory to the system and enhance performance. It helps by allowing Windows Vista to use the empty storage space on removable media (e.g USB sticks) that helps speed it up. Insert a portable hard drive or USB stick and then Vista should offer you the option of using ReadyBoost to speed up your computer. Be sure to only use a fast flash memory card, as Windows Vista can not use the slow version. It is recommended to use up to three times the RAM in your computer. Therefore, if you have 512 megs of RAM, you’ll need to use 1.5 GB for the optimal performance.

A feature that can also be used to speed up Vista is the System Health Report.

  1. You go to the control panel, then ‘performance and information tools’, then ‘advanced tools’.
  2. You can click on ‘generate a system health report’. It takes about a minute to run, then it will show you all the details of your PC, and it will also offer solutions as well.
  3. The report contains both the hardware configurations and also the software configurations and their errors.
  4. You can then search out the best product to fix the specific needs of your PC.

One of the best known ways to increase the speed of Windows Vista is by adding more RAM to your computer. If you have a fairly recent model you can go down to you local computer supply store and buy more RAM that is inserted into the inside of your machine. If you are not familiar with how or where the extra RAM should be installed, have a professional do it or you’ll end up causing more damage than just a slow system. This has proven to be one of the most successful ways in which to increase the speed of Windows Vista.

Another step you can take to speed up Windows Vista is to disable the Indexing Service. As we mentioned in the post about speeding up Windows XP , the Indexing Service is somewhat unnecessary. What this service does is to keep an index in memory for all your Windows files’ location so that to give you faster results when searching your PC for a specific file. This operation takes up significant memory. To disable Indexing Services:

  • Go to My Computer, Right Click on C Drive and uncheck “Index this drive for faster searching” under the General Tab.

Remove TrustCop-Removing TrustCop Automatically

Important Note: If you got infected with TrustCop and paid money for it, you must contact your credit card company immediately and request your money back.

In this article I will show you with details how to remove TrustCop virus (either automatically or manually) from your computer. For a free scan of your computer to verify if you are infected with TrustCop virus, download the Antispyware tool below, install it and perform a full system scan.

free download spyware doctor

TrustCop is another malware program that appeared recently on the Internet. It looks like a legitimate security antivirus scanner, but it is actually a rogue program with a sole purpose to steal money from innocent computer users. TrustCop infiltrates your computer with the help of a Trojan virus. The Trojan first gets into your PC (maybe from freeware programs that you installed or via browsing illegal websites) and then it downloads and installs TrustCop. The Trojan virus will then configure TrustCop to start automatically every time you boot your computer. Also, several random files will be created on your hard disk which will look like virus infected files. The purpose of these fake files is to have them “detected” by the TrustCop program which will ask you to purchase its full version in order to delete them. The picture below shows how TrustCop performs a fake scan of a computer system in order to convince the user that it is supposedly a legitimate security tool.

To get rid of TrustCop virus you can follow either the Automatic or the Manual method I will explain below. The Automatic method is recommended for a safe TrustCop removal. The manual method is recommended ONLY if you are expert in Windows Operating System, since it involves messing around with the Registry which can cause fatal problems if you don’t know what you are doing.

Remove TrustCop Automatically

Fortunately there are a few trusted Antispyware tools on the market which can effectively remove TrustCop virus and many other malware programs permanently. One such tool is the famous Spyware Doctor from PCTools software company. I would recommend to Download the Free Trial of Spyware Doctor Here, or visit the Spyware Doctor Website for more information.

free download spyware doctor

If you have already downloaded Spyware Doctor from the beginning of this article (Free Scan Button) then you can skip this step.

After Downloading Spyware Doctor, run it and have it scan your PC for free. The free version of Spyware Doctor is for malware detection only. After detecting the TrustCop virus, you can purchase the full version to automatically clean up your PC from TrustCop or from any other viruses that reside on your system. If you don’t have already an Antispyware tool, then it is an excellent opportunity now to get a good one, like Spyware Doctor.

Remove TrustCop Manually

Before proceeding any further, I strongly suggest you to backup everything, and especially your registry. We take no responsibility for any damage you may cause to your computer.

Step1: Stop the following Processes

(Note: some processes might have a different name on your case)

  • TrustCop.exe
  • uninstall.exe
  • 28a6d9wnlzader1957.exe
  • ca85mxcq.exe

 
Step2: Unregister the following DLL files

(Note: To unregister a DLL file, open a command prompt window and type:
C:\> regsvr32 /u filename.dll ). You may need to navigate to exact path where the DLL file is located.
 

  • 288995acktool3z1.dll
  • 10134spamb9zb95.dll
  • 1015zpyware2930.dll

 
Step3: Delete the following Registry Values (be careful)

HKEY_CURRENT_USER\Software\TrustCop
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\TrustCop
HKEY_LOCAL_MACHINE\SOFTWARE\TrustCop
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “ca85mxcq.exe”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “TrustCop”

Step4: Delete the following files

c:\Program Files\TrustCop Software\TrustCop\TrustCop.exe
c:\Program Files\TrustCop Software\TrustCop\uninstall.exe
c:\Program Files\TrustCop Software\TrustCop
c:\Program Files\TrustCop Software
c:\Documents and Settings\All Users\Desktop\TrustCop.lnk
c:\Documents and Settings\All Users\Start Menu\Programs\TrustCop
c:\Documents and Settings\All Users\Start Menu\Programs\TrustCop\1 TrustCop.lnk
c:\Documents and Settings\All Users\Start Menu\Programs\TrustCop\2 Homepage.lnk
c:\Documents and Settings\All Users\Start Menu\Programs\TrustCop\3 Uninstall.lnk
%Temp%\ca85mxcq.exe
c:\WINDOWS\10134spamb9zb95.dll
c:\WINDOWS\1015zpyware2930.dll
c:\WINDOWS\10753tzo5931.bin
c:\WINDOWS\system32\288995acktool3z1.dll
c:\WINDOWS\system32\28935virus54z.ocx
c:\WINDOWS\system32\28a6d9wnlzader1957.exe

Then, reboot your machine and cross your fingers!!!

GOOD LUCK

How to speed up Windows XP

If you recently brought home you new computer with Windows XP operating system, and after only a couple of weeks you are finding it slowing down, then you may want to find out how to speed up performance on Windows XP.

Your operating system can slow down for a multitude of reasons like a virus, but chances are if it is only slow, you may well have some errors in your registry. Some files can become corrupted through the downloading process or the registry is bogged down from installing and removing applications.

Your registry is responsible for storing and maintaining all the files that basically run your system. It deals with installed applications, data user preferences, hardware device configuration and lots more.

Your registry is always changing, and being updated every single day. The registry is also a place where you can find many obsolete folders and files. Because your computer needs to run through everything in its registry upon startup and through out its daily operations, these folders and files that have become corrupted or obsolete will slow it down dramatically. If the registry gets too corrupted it may cause your entire system to slow down or even crash.

So, the first step you need to take for speeding up your Windows XP is to clean and optimize the registry with a good registry cleaner and optimizer tool. By keeping a clean registry, you can alleviate the slowness. You can find all sorts of registry cleaners on the Internet or at you computer supply store. The best place to start is by searching online because there you can look at any customer reviews about the software you’re about to buy. Buying a good registry cleaner is the first step to speed up performance of Windows XP.

Registry cleaners don’t just find and delete irrelevant folders and files, they are also capable of optimizing it so that everything is in its proper place. They can also assist in reducing or compacting the size of your registry to keep it running quickly. Any top registry cleaner will search out any of these files that have become corrupted through improper downloads, incomplete downloads, un-installing a program or failed downloads, and fix them immediately. It can also take care of removing any malicious entries from viruses or spyware.

The second important step you can take to speed up your Windows XP is to disable the Indexing Services which is an unnecessary service that takes a lot of RAM memory and wastes important resources from your computer. The Indexing Services process is responsible to keep track and updates the location of all of your computer files so that to give you a faster result when you search to find a specific file on your hard disk. This is an unnecessary service in my opinion and can be disabled, thus freeing you some precious memory for other tasks. This will speed up your overall Windows performance.

How to disable Indexing Services:

  • Go to Start > Setting > Control Panel
  • Double click Add or Remove Programs
  • Click the Add/Remove Windows Components
  • Uncheck the Indexing Services and press Next

 
Learning how to speed performance of your Windows XP may seem like an overwhelming task but following the simple two steps I described above you can get an enhanced PC performance. Many people are scared stiff when it comes to changing anything on their computer. While anything that is done to the registry by someone with little or no computer knowledge is highly recommended against, there are programs that can take care of everything for you. Therefore, you won’t have to worry about making your system worse using a registry cleaner.

Learning how to speed up performance on Windows XP is not very hard to do on your own. By seeking out a legitimate registry cleaner and also disabling the Indexing Services, you’ll have a smooth running fast system, just like the day you bought it.

Cisco ASA 5505 User License Explained

I get a lot of questions regarding the meaning of user license numbers for the Cisco ASA 5505. This model is offered in three User License options. 10 users, 50 users and UL (unrestricted license). The meaning of user license basically refers to concurrent IP addresses that can communicate between Internal (inside) network and Internet (outside) interface. So, for 10 user license, only 10 concurrent internal hosts (IP addresses) can access the internet. The same applies for 50 users (only 50 concurrent IP addresses can access the Internet). For UL license, there is no such restriction.

The user licensing has also an effect on the maximum number of IP addresses that can be assigned by the DHCP server of the ASA5505 to the internal hosts. For a 10-user license, the max number of DHCP clients on the internal network is 32. For 50-user license, the max number of DHCP clients is 128.

The official explanation from Cisco regarding the Cisco ASA5505 user licensing is as follows:

“In routed mode, hosts on the inside (Business and Home VLANs) count towards the limit only when they communicate with the outside (Internet VLAN). Internet hosts are not counted towards the limit. Hosts that initiate traffic between Business and Home are also not counted towards the limit. The interface associated with the default route is considered to be the Internet interface. If there is no default route, hosts on all interfaces are counted toward the limit. In transparent mode, the interface with the lowest number of hosts is counted towards the host limit. See the show local-host command to view host limits. “

The terms “Business” and “Home” VLANs above refer to the Internal and DMZ network zones.

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