Showing posts with label cache. Show all posts
Showing posts with label cache. Show all posts

Friday, June 5, 2015

How can I keep my computer from getting infected? Pacific NW Computers' PC Security Tips


1. Make sure you regularly run MANUAL scans with your installed security software!
Security Programs We Recommend (Or Have Installed):
  • Avast Antivirus, BitDefender Free, Microsoft Security Essentials
  • MalwareBytes Anti-Malware
  • Spybot Search & Destroy
  • CCleaner
*For direct download links to the software listed above, visit "Pacific NorthWest Computers' Links and Recommended Software" page on our Blog Link below!
http://pnwcomputers.blogspot.com/2013/06/pnw-computers-links-and-recommended.html

Basic/General Scanning Procedure:

  • Before running any scans with any of the installed security software, be sure to FULLY update the software FIRST.
  • After updating the security software, perform the deepest and most thorough scan that the software is capable of. This is usually labeled as a FULL or COMPLETE scan.
  • DELETE or QUARANTINE any and all of the security software’s findings.
  • Make sure you DON’T download and install any scanner/security software that solicits you to download and install its software. These scanners are blacklisted because of their questionable reputation.

2. Make sure your Windows is ALWAYS up to date!

  • An unpatched Windows is vulnerable and even with the “best” Antivirus installed; malware will find its way through.
    So visit http://windowsupdate.microsoft.com/ to download and install the latest updates.
  • Be sure to download and install all CRITICAL and SOFTWARE updates! You also may have to do several “passes” of Windows updates before all the available updates/patches are actually installed.
  • Verify that your version of Windows Vista, Windows 7 or Windows 8 has the most recent service pack installed. If this is not currently installed on your system, the Windows Update website will recognize this vulnerability and request you to download and install any available Service Packs and other needed updats.

3. Stay away from questionable sites.

  • This is one of the main causes why a computer gets infected. Visiting cracksites/warezsites – and other questionable/illegal sites is ALWAYS a risk. Even a single click on the site can be responsible for installing a huge amount of malware. Don’t think: “I have a good Antivirus and Firewall installed, they will protect me” – because that’s not true… there is no “Magic Bullet”. Before you know it, your Antivirus and Firewall may already be disabled because malware already found its way on your system.


4. Be careful with email attachments!

  • Malware spreads via email as well, especially email attachments. The most common ones are emails telling you that your computer is infected and that you can find the removal tool in the attachment, emails telling you that your password has changed and can find it in the attachment, emails with product codes in the attachment from software that you purchased (which you didn’t), emails with attachments that are so called “Security Updates”, etc. etc.
  • Don’t trust any emails like the ones listed above. Don’t even attempt to preview/open them and delete them immediately instead! It may also happen you receive an email from someone you know, but with a questionable attachment present and strange content in the e-mail’s message. In this case, this person – or someone else who has your address book in his/her address book – is infected with malware (worm/spambot) and sends these emails without being aware of it.
  • Don’t click links in emails from someone you don’t know, because these links can redirect you to sites where malware gets downloaded and installed.

5. When surfing the internet…

  • Use Google Chrome or the FireFox web browser as your MAIN internet browser. These browsers does not use ActiveX controllers or BHO’s (these are programs that are a standard feature’s of Microsoft’s Internet Explorer and are “exploited” vulnerabilities that hackers use to infect computers). If a specific website (such as a financial institution website) may require Internet Explorer to be used in order for you to view their site, then use Internet Explorer. But for that specific website ONLY!
  • Don’t click on links inside pop-ups. ALWAYS close the windows via the "X" for the window vs. clicking "Cancel" or any other 'escapes' in the pop-up.
  • Download software off of the internet from websites you know and trust. A lot of free software comes bundled with other software, including malware.
  • Be careful when you are viewing videos online. Especially when you get a pop-up asking you to download a “Codec” to be able to watch the video. By default, your media player should already have the necessary codec installed to watch online videos. In the case that you’re prompted to install an additional codec while trying to watch a move online (or downloaded), it is most likely a false alert and this so-called codec may install malware.
  • Don’t install plug-ins (ActiveX) if you’re not certain what it is or why it is you need it. (Unless you are attempting to perform Windows/Microsoft Updates).
  • Glubble is a great FireFox add-on if you want to manage the sites your kids are allowed to see.

6. Watch what you download!

  • If you want to install certain software, always go to the developer’s site to download the software. Then you can be sure you’re downloading and installing the right software. Be aware of the fact that certain software (especially freeware) may contain/come bundled with extra software including spyware and/or adware. So only install when you’re sure they are OK.
  • The use of Torrent sites, Game Patches and Mods, Emulators; really anything "Free" is always a risk. Unless the download/host site is a reputable site, you can never be sure what you are exactly downloading. A file you are looking to download or have downloaded isn’t always what it’s made out to be.

If you have any questions or comments please don't hesitate to get in touch!

Jon Pienkowski
Pacific NorthWest Computers
www.pnwcomputers.com
360-624-7379

Tuesday, July 16, 2013

How to Clean up a Slow Performing Computer ~PLUS~ a few Mac tips too ;)


Many think that when a computer starts performing poorly it's time to buy a new computer. Does your desktop or laptop often hang on the hourglass or swirling circle for several minutes at a time? Does "Not Responding" sound familiar to you? Is it slow to load files or applications, and does it take a long time to boot? Even if you're extremely careful about how you use your computer and never download questionable material, over time it is inevitable that your system will accumulate unwanted registry entries, errors, clutter, and debris. Here's how to clean your computer up and get it running faster again!

Things YOU can DO:

  1. Update and Scan with your Security Software:
    (Link to more in-depth PC/computer clean-up guide)
    Antivirus software helps protect you from viruses and other malicious files that can spread through emails or downloads. It performs regular system checks and detects when foreign files are trying to infiltrate your computer.
    We recommend using Malwarebytes Anti-Malware for comprehensive protection.
    Click the link below for a list of the security software that we recommend and use:
  2. Do not use Registry Optimizers or so-called Clean Reg Tools.
    Most of these cause more harm than good in the long run.
  3. Clear up space on the hard drive.
    Deleting unnecessary files is an easy way to free up memory and improve performance. Use BleachBit for a thorough cleanup of your PC, and Onyx for your Mac.

    • For Windows 10 and 11: Open Settings, go to System, then Storage, and use the built-in Disk Cleanup tool.
    • For macOS: Go to the Apple menu, select About This Mac, then Storage, and use the Manage button to find options for optimizing storage.
  4. Uninstall useless programs or programs you rarely use. These can include games, media files, or redundant software.

    • For Windows: Go to Settings, then Apps, and uninstall programs that are no longer needed.
    • For macOS: Drag unwanted applications from the Applications folder to the Trash, then empty the Trash.
    • When uninstalling programs be sure you don't need them! Some programs are needed for the operation of the computer. So if you are unsure about a program then leave it alone or do a quick search on Google to see if you can find out whether it's good or bad.

  5. Clean Up Junk Files.
    BleachBit is a powerful, open-source tool that helps you clean up unnecessary files and free up disk space on your computer. Follow these steps to use BleachBit to clean your system:
    • Download and Install "BleachBit," and then find and click on the application to open it.
    • Choose What to Clean:
      1. In BleachBit, you will see a list of cleaners on the left-hand side. 
      2. These cleaners correspond to different types of junk files and applications.
      3. Check the boxes next to the items you want to clean. 
      4. Common selections include:
        • System: Temporary files, logs, memory dumps
        • Web browsers: Cache, history, etc
        • Careful deleting cookies as they store your saved login data.
        • Applications: Temporary files from installed applications
        • Deep Scan:
          • For a more thorough clean, you can enable "Deep Scan" under the System section. 
          • This option will scan for and delete more obscure temporary files and caches.
          • Be cautious with deep scanning, as it may delete files you were not expecting.
      5. Preview (Optional but Recommended):
        • Click the "Preview" button to see a list of files that will be deleted and the amount of space that will be freed.
        • Review the list to ensure no important files will be deleted.
      6. Clean:
        • If you're satisfied with the preview, click the "Clean" button to delete the selected files.
        • BleachBit will begin cleaning the files, which may take a few minutes depending on the amount of data.

  6. Defragment your hard drive if you are using a traditional HDD. 
    *SSDs do not need defragmentation.
    1. For Windows: Open the Start Menu, search for Defragment and Optimize Drives, and run the tool.
    2. MacOS: Mac operating systems manage disk fragmentation automatically, so manual defragmentation is not needed.

  7. Check your RAM.
    If your computer is running slowly, you might need more RAM.
    1. For Windows: Right-click on This PC, select Properties and check the installed RAM. Consider upgrading if you have less than 8GB for modern systems.
    2. For macOS: Click the Apple menu, select About This Mac, and check the Memory tab. Aim for at least 8GB for general use.

  8. Optimize startup programs.
    Reducing the number of programs that run at startup can improve boot times.
    1. For Windows: Open Task Manager (Ctrl+Shift+Esc), go to the Startup tab and disable unnecessary programs.
    2. For macOS: Go to System Preferences, then Users & Groups, and select your user. Click the Login Items tab and remove unnecessary items.

    Other Tips:

    • Only install software that you intend to use regularly.
    • Be cautious with free downloads; they can come with spyware, malware, or viruses.
    • Regularly clean up your computer using tools like BleachBit.
    • Ensure safe internet browsing by using a firewall and a secure browser.
    • Schedule regular scans with your antivirus and anti-malware software.
    • Always back up your important data before running any cleanup tool.
    • If you're unsure about specific options, stick to the default settings.

      Warnings:

      • When uninstalling programs, ensure they are not essential for your system's operation. If unsure, do a quick search to verify.
      • Use anti-malware programs carefully and follow instructions thoroughly. Incorrect changes to the registry can worsen performance. If you're unsure, clean only detected items marked in red, or consult a knowledgeable friend or professional.

    Further Reading/Related Articles:

    How you can get infected & what you can do to try to prevent it: