ESET Threat Center

Tuesday, January 19, 2010

I'm currently testing the free version of COMODO Internet Security version: 3.13.126709.581 and its been a week since its installed on my PC: Windows XP SP2; 128 Mb VRam; 512 Mb Ram. As of this moment it doesn't give any problems and updating is not a problem & virus detection is good. It is able to detect unwanted programs that NOD failed to detect. Temporarily, I shut off my NOD 32 Antivirus/Antispyware.

Sunday, January 10, 2010

99 ways to make your computer blazingly fast
Posted by Aseem on Tuesday, February 10th 2009
10
Feb


Over the last several years working in IT for various companies as a Systems Administrator, Network Administrator, and Help Desk professional, I’ve written and learned about many ways to increase the performance of not only my PC, but also of the many PCs on my networks ranging from Windows 98 to Windows Vista.

In this article, I hope to compile a complete list of all the different methods and tricks that I’ve used to get the last bit of juice out of a slow PC. Whether you are using an old PC or the latest and greatest in hardware, you can still use some of these to make your PC run faster.


Note that since I write two blogs, Help Desk Geek and Online Tech Tips, I have previously written about many performance tips already which I will link back to throughout. If I have not written about it, I’ve throw in a link to a relevant article from some of my other favorite sites. This list is in no particular order, just written in the order that I could think of them.

There are probably a lot of great tweaks and performance hacks that I’ve missed here, so feel free to chime in with comments! Enjoy!

1. Defragment your computer hard disk using free tools like SmartDefrag.

2. You should also defragment your Windows pagefile and registry.

3. Clean up hard drive disk space being taken up by temporary files, the recycle bin, hibernation and more. You can also use a tool like TreeSize to determine what is taking up space on your hard drive.

4. Load up Windows faster by using Startup Delayer, a free program that will speed up the boot time of Windows by delaying the startup of programs.

5. Speaking of startup programs, many of them are useless and can be turned off. Use the MSCONFIG utility to disable startup programs.

6. By default, the size of the paging file is controlled by Windows, which can cause defragmentation. Also, the paging file should be on a different hard drive or partition than the boot partition. Read here on the rules for best paging file performance.

7. In Windows XP and Vista, the Windows Search indexing service is turned on for all local hard drives. Turning off indexing is a simple way to increase performance.

8. If you don’t care about all the fancy visual effects in Windows, you can turn them off by going to Performance Options.

9. You can optimize the Windows boot time using a free program called Bootvis from Microsoft.

10. Clean your registry by removing broken shortcuts, missing shared DLLs, invalid paths, invalid installer references and more. Read about the 10 best and free registry cleaners.

11. One of the main reasons why PC’s are slow is because of spyware. There are many programs to remove spyware including Ad-Aware, Giant Antispyware, SUPERAntiSpyware, and more.

12. If you have a deeper spyware infection that is very hard to remove, you can use HijackThis to remove spyware.

13. Remove unwanted pre-installed software (aka junk software) from your new PC using PC Decrapifier.

14. Disable unnecessary Windows services, settings, and programs that slow down your computer.

15. Tweak Windows XP and tweak Windows Vista settings using free programs

16. Disable UAC (User Account Control) in Windows Vista

17. Tweak your mouse settings so that you can copy and paste faster, scroll faster, navigate quickly while browsing and more. Read here to learn how to tweak your mouse.

18. Delete temporary and unused files on your computer using a free program like CCleaner. It can also fix issues with your registry.

19. Delete your Internet browsing history, temporary Internet files, cookies to free up disk space.

20. Clean out the Windows prefetch folder to improve performance.

21. Disable the XP boot logo to speed up Windows boot time.

22. Reduce the number of fonts that your computer has to load up on startup.

23. Force Windows to unload DLLs from memory to free up RAM.

24. Run DOS programs in separate memory spaces for better performance.

25. Turn off system restore only if you regularly backup your Windows machine using third party software.

26. Move or change the location of your My Documents folder so that it is on a separate partition or hard drive.

27. Turn off default disk performance monitors on Windows XP to increase performance.

28. Speed up boot time by disabling unused ports on your Windows machine.

29. Use Process Lasso to speed up your computer by allowing it to make sure that no one process can completely overtake the CPU.

30. Make icons appear faster while browsing in My Computer by disabling search for network files and printers.

31. Speed up browsing of pictures and videos in Windows Vista by disabling the Vista thumbnails cache.

32. Edit the right-click context menu in Windows XP and Vista and remove unnecessary items to increase display speed.

33. Use the Windows Performance Toolkit and the trace logs to speed up Windows boot time.

34. Speed up your Internet browsing by using an external DNS server such as OpenDNS.

35. Improve Vista performance by using ReadyBoost, a new feature whereby Vista can use the free space on your USB drive as a caching mechanism.

36. If you have a slow Internet connection, you can browse web pages faster using a service called Finch, which converts it into simple text.

37. Use Vista Services Optimizer to disable unnecessary services in Vista safely.

38. Also, check out my list of web accelerators, which are programs that try to prefetch and cache the sites you are going to visit.

39. Speed up Mozilla Firefox by tweaking the configuration settings and by installing an add-on called FasterFox.

40. Learn how to build your own computer with the fastest parts and best hardware.

41. Use a program called TeraCopy to speed up file copying in Windows XP and Vista.

42. Disable automatic Last Access Timestamp to speed up Windows XP.

43. Speed up the Start Menu in Vista by hacking the MenuShowDelay key in the registry.

44. Increase the FileSystem memory cache in Vista to utilize a system with a large amount of RAM.

45. Install more RAM if you are running XP with less than 512 MB or Vista with less than 1 GB of RAM.

46. Shut down XP faster by reducing the wait time to kill hung applications.

47. Make sure that you have selected “Adjust for best performance” on the Performance tab in System Properties.

48. If you are reinstalling Windows, make sure that you partition your hard drives correctly to maximize performance.

49. Use Altiris software virtualization to install all of your programs into a virtual layer that does not affect the registry or system files.

50. Create and install virtual machines for free and install junk program, games, etc into the virtual machines instead of the host operating system. Check out Sun openxVM.

51. Do not clear your paging file during shutdown unless it is needed for security purposes. Clearing the paging file slows down shutdown.

52. If your XP or Vista computer is not using NFTS, make sure you convert your FAT disk to the NTFS file system.

53. Update all of your drivers in Windows, including chipset and motherboard drivers to their latest versions.

54. Every once in a while run the built-in Windows Disk Cleanup utility.

55. Enable DMA mode in Windows XP for IDE ATA/ATAPI Controllers in Device Manager.

56. Remove unnecessary or old programs from the Add/Remove dialog of the Control Panel.

57. Use a program click memtest86 or Prime95 to check for bad memory on your PC.

58. Determine your BIOS version and check the manufactures website to see if you need to update your BIOS.

59. Every once in a while, clean your mouse, keyboard and computer fans of dust and other buildup.

60. Replace a slow hard drive with a faster 7200 RPM drive, SATA drive, or SAS drive.

61. Changing from Master/Slave to Cable Select on your hard drive configuration can significantly decrease your boot time.

62. Perform a virus scan on your computer regularly. If you don’t want to install virus protection, use some of the free online virus scanners.

63. Remove extra toolbars from your Windows taskbar and from your Internet browser.

64. Disable the Windows Vista Sidebar if you’re not really using it for anything important. All those gadgets take up memory and processing power.

65. If you have a SATA drive and you’re running Windows Vista, you can speed up your PC by enabling the advanced write caching features.

66. Learn how to use keyboard shortcuts for Windows, Microsoft Word, Outlook, or create your own keyboard shortcuts.

67. Turn off the Aero visual effects in Windows Vista to increase computer performance.

68. If you are technically savvy and don’t mind taking a few risks, you can try to overclock your processor.

69. Speed up the Send To menu in Explorer by typing “sendto” in the Run dialog box and deleting unnecessary items.

70. Make sure to download all the latest Windows Updates, Service Packs, and hot fixes as they “normally” help your computer work better.

71. Make sure that there are no bad sectors or other errors on your hard drive by using the ScanDisk orchkdsk utility.

72. If you are not using some of the hardware on your computer, i.e. floppy drive, CD-ROM drive, USB ports, IR ports, Firewire, etc, then go into your BIOS and disable them so that they do not use any power and do not have to be loaded during boot up.

73. If you have never used the Recent Documents feature in Windows, then disable it completely as a long list can affect PC performance.

74. One basic tweak that can help in performance is to disable error reporting in Windows XP

75. If you don’t care about a pretty interface, you should use the Windows Classic theme under Display Properties.

76. Disable short filenames if you are using NTFS by running the following command: fsutil behavior set disable8dot3 1. It will speed up the file creation process.

77. If you have lots of files in a single folder, it can slow down Explorer. It’s best to create multiple folders and spread out the files between the folders.

78. If you have files that are generally large, you might want to consider increasing the cluster size on NTFS to 16K or even 32K instead of 4K. This will help speed up opening of files.

79. If you have more than one disk in your PC, you can increase performance by moving your paging file to the second drive and formatting the volume using FAT32 instead of NTFS.

80. Turn off unnecessary features in Vista by going to Control Panel, choosing Uninstall a program, and then clicking on Turn Windows features on and off. You can turn off Remote Differential Compression, Tablet PC components, DFS replication service, Windows Fax & Scan, Windows Meeting Space, and lots more.

81. Install a free or commercial anti-virus program to help protect against viruses, etc. Make sure to use an anti-virus program that does not hog up all of your computer resources.

82. Completely uninstall programs and applications using a program like Revo Uninstaller. It will get rid of remnants left behind by normal uninstalls.

83. If you know what you are doing, you can install several hard drives into your machine and set them up in RAID 0, RAID 5, or other RAID configurations.

84. If you are using USB 1.0 ports, upgrade to 2.0. If you have a Firewire port, try to use that instead of a USB port since Firewire is faster than USB right now.

85. Remove the drivers for all old devices that may be hidden in Device Manager that you no longer use.

86. A more extreme option is to choose a faster operating system. If you find Vista to be slow, go with Windows XP. Switching to Mac or Linux is also an option.

87. One of the easiest ways to speed up your PC is to simply reformat it. Of course, you want to backup your data, but it is the best way to get your computer back to peak performance.

88. Speed up Internet browsing in IE by increasing the number of max connections per server in the registry.

89. If you use uTorrent to download torrents, you can increase the download speeds by tweaking the settings.

90. If you have a desktop background, make sure it’s a small and simple bitmap image rather than a fancy picture off the Internet. The best is to find a really small texture and to tile it.

91. For the Virtual Memory setting in Windows (right-click on My Computer, Properties, Advanced, Performance Settings, Advanced, Virtual Memory), make sure the MIN and MAX are both the same number.

92. If you search on Google a lot or Wikipedia, you can do it much faster on Vista by adding them to the Vista Start Menu Instant Search box.

93. If you have a custom built computer or a PC that was previously used, make sure to check the BIOS for optimal settings such as enabled CPU caches, correctly set IDE/SATA data transfer modes, memory timings, etc. You can also enable Fast/Quick boot if you have that option.

94. If you have a SCSI drive, make sure the write cache is enabled. You can do so by opening the properties of the SCSI drive in Windows.

95. If you have a machine with an older network card, make sure to enable the onboard processor for the network card, which will offload tasks from the CPU.

96. If you are using Windows Vista, you can disable the Welcome Center splash screen that always pops up.

97. If you already have anti-spyware software installed, turn off Windows Defender protection.

98. If you are running a 32-bit version of Windows and have 4GB of RAM or more, you can force Windows to see and use all of the RAM by enabling PAE.

99. Buy a new computer!!! Pretty easy eh?
Increase Broadband Connection Speed in Windows XP/2003
by Daniel Petri - January 8, 2009

This tip is designed for increased BROADBAND speed in Windows XP while using standard Network Interface cards (NIC) that are connected to ADSL modems, or when using any directly-connected USB ADSL modem.

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To speed up the Internet connection speed we need to configure a special buffer in the computer's memory in order to enable it to better deal with interrupts made from the NIC or the USB modem.

This tip is only recommended if you have 256MB RAM or higher.
Step #1 - Identify the IRQ used by the NIC/USB modem

Follow these steps:

Open the System Information tool by running MSINFO32.EXE from the Run command.

Expand System Summary > Hardware Resources > IRQs.

Look for the listing made for your NIC (in my case - a Intel(R) PRO/100+ Management Adapter). Note the IRQ next to the specified line (in my case - IRQ21).


In case of USB modems you will first need to find the right USB device used by your modem. Follow these steps:

Open the Device Manager tool by running DEVMGMT.MSC from the Run command (or by right-clicking My Computer > Hardware tab > Device Manager button).

Scroll down to Universal Serial Bus controllers and expand it.

Right-click the USB Root Hub and select Properties. Note that you might need to do so for all listed USB Root hubs (if there are more than one) in order to find the right one.


In the Power tab, look for your USB ADSL modem.

In the Resources tab look for the assigned IRQ (in this case - IRQ21).



This is the IRQ we're looking for.

Lamer note: IRQs and modem names might vary...
Step #2 - Modify the system.ini file

Follow these steps:

Run SYSEDIT.EXE from the Run command.

Expand the system.ini file window.

Scroll down almost to the end of the file till you find a line called [386enh].

Press Enter to make one blank line, and in that line type

IrqX=4096

where X is the designated IRQ number we found in step #1, in my case it's IRQ21.


Note: This line IS CASE SENSITIVE!!!

Click on the File menu, then choose Save.

Close SYSEDIT and reboot your computer.

Done. Speed improvement will be noticed after the computer reboots.

Update: The most speed improvement is visible with USB A/DSL modems, however there are reports that this tweak also does good for regular NICs. In any case, it won't harm your system, so why not try it yourself and let me know what you find.
Increase Internet Connection Speed in Windows XP
by Daniel Petri - January 8, 2009

This tip is designed for increased BROADBAND speed in Windows XP, but it should work for 56k modems too.

Petri Recommended: Update to the Latest Vista Drivers

Vista's performance can be improved dramatically by installing the latest Vista-Certified hardware drivers. PC hardware manufacturers release new, improved Vista drivers continually: New versions are probably available for your PC right now.

Petri IT Knowledgebase Team
>> Download Driver Genius Pro: Our recommended Vista driver update scanner (5.1Mb)


Note: You might also want to read the Increase Broadband Connection Speed in Windows XP/2003 tip for more info.

QoS Packet Scheduler is a method of network bandwidth management that can monitor the importance of data packets and depending upon the priority of the packet, give it higher or lower priority or bandwidth levels. It's not very useful unless you're using apps which are QoS-aware or running a server, so you can gain some network overhead back by turning it off.

Note: This following tip will not work on XP Home Edition.
Make sure you're logged on as actually "Administrator". Do not log on with any account that just has administrator privileges.
Start > Run > type gpedit.msc (not available in home version).


Expand the Local Computer Policy branch.
Expand the Administrative Templates branch.
Expand the Network branch.
Highlight the "QoS Packet Scheduler" in left window.
In right window double click the "limit reservable bandwidth" setting.
On setting tab check the ENABLED item.
Where it says "Bandwidth limit %" change it to read 0 (ZERO).
Close gpedit.msc.

Effect is immediate on some systems, some need to re-boot.
Increase Hard Disk Speed in Windows XP/2003
by Daniel Petri - January 8, 2009

How can I increase my hard disk speed in Windows XP/2003?

Petri Recommends: Install Windows 7 Drivers Automatically

After installing Windows 7, it's important to install the correct hardware drivers to get your video, sound, network, and other components working properly.

Automate the update process with Driver Genius Professional.
Get the Driver Genius Pro Download Here...


To speed up your hard disk speed we need to configure a special buffer in the computer's memory in order to enable it to better deal with interrupts made from the disk.



This tip is only recommended if you have 256MB RAM or higher.

Follow these steps:

Run SYSEDIT.EXE from the Run command.

Expand the system.ini file window.

Scroll down almost to the end of the file till you find a line called [386enh].

Press Enter to make one blank line, and in that line type

Irq14=4096


Note: This line IS CASE SENSITIVE!!!

Click on the File menu, then choose Save.

Close SYSEDIT and reboot your computer.

Done. Speed improvement will be noticed after the computer reboots.


Update: The most speed improvement is visible with IDE drives, however there are reports that this tweak also does good for SCSI disks. In any case, it won't harm your system, so why not try it yourself and let me know what you find.
How to restore GRUB with a Ubuntu Live CD

 

Sometimes, if an Ubuntu installation goes wrong, or a Windows bootloader overwrites MBR and doesn't recognise the Linux installation, we have to restore our GRUB bootloader

we boot the Live CD, we choose the first option and in a few minutes we have arrived at the Live CD Desktop.

So, we go : Applications --> Accessories --> Terminal

Then, we have to remember which is our Ubuntu installation partition.

In our example, it is the second one (/dev/sda2), formatted as ext3, in the first HDD of a SATA controller. We suppose that it is the second one, since, in case we have Windows that demand to be in the first partition (/dev/sda1), this one is occupied.

Now, you have to be really careful. You have to enter the right partition, instead of sda2 (unless it is the same) In the terminal :

cd /
sudo -s -H
mount -t ext3 /dev/sda2 /mnt
mount -t proc proc /mnt/proc
mount -t sysfs sys /mnt/sys
mount -o bind /dev /mnt/dev
chroot /mnt /bin/bash

And now, you are actually "running" Ubuntu within the Hard Drive but through Live CD's terminal.

Now we restore GRUB like that:

1) Restoration to MBR

grub-install /dev/sda

2) Restoration to partition (example: /dev/sda2)

grub-install /dev/sda2

In the first case (that is the most usual) you have certainly installed GRUB on MBR after you receive, in the terminal, the message that there are no errors.

After you reboot, you have your favorite bootloader restored.