Geeks in Phoenix

Geek Blog


Managing Virtual Memory / Pagefile in Windows 7

Your computer has two types of memory, Random Access Memory (RAM) and Virtual Memory. All programs use RAM, but when there isn't enough RAM for the program you're trying to run, Windows temporarily moves information that would normally be stored in RAM to a file on your hard disk called a Paging File. The amount of information temporarily stored in a paging file is also referred to as virtual memory. Using virtual memory, in other words, moving information to and from the paging file, frees up enough RAM for programs to run correctly.

The more RAM your computer has, the faster your programs will generally run. If a lack of RAM is slowing your computer, you might be tempted to increase virtual memory to compensate. However, your computer can read data from RAM much more quickly than from a hard disk, so adding RAM is a better solution.

If you receive error messages that warn of low virtual memory, you need to either add more RAM or increase the size of your paging file so that you can run the programs on your computer. Windows usually manages this automatically, but you can manually change the size of virtual memory if the default size isn't large enough for your needs.

Change the size of virtual memory

If you receive warnings that your virtual memory is low, you'll need to increase the minimum size of your paging file. Windows sets the initial minimum size of the paging file equal to the amount of random access memory (RAM) installed on your computer, and the maximum size equal to three times the amount of RAM installed on your computer. If you see warnings at these recommended levels, then increase the minimum and maximum sizes.

To open the System Properties, press Windows logo key + Pause

Windows 7 Pagefile Settings 1

In the left pane, click Advanced system settings. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

Windows 7 Pagefile Settings 2

On the Advanced tab, under Performance, click Settings.

Windows 7 Pagefile Settings 3

Click the Advanced tab, and then, under Virtual memory, click Change.

Windows 7 Pagefile Settings 4

Clear the Automatically manage paging file size for all drives check box.

Under Drive [Volume Label], click the drive that contains the paging file you want to change.

Click Custom size, type a new size in megabytes in the Initial size (MB) or Maximum size (MB) box, click Set, and then click OK. There is a formula for calculating the correct pagefile size. Minimum pagefile size is one and a half (1.5) x amount of memory. Maximum pagefile size is three (3) x minimum pagefile size. Say you have 4 Gb (4,096 Mb) of memory. 1.5 x 4,096 = 6,144 Mb would be the min. pagefile size and 3 x 6,144 = 18,432 Mb would be the max. pagefile size.

Note:
Increases in size usually don't require a restart for the changes to take effect, but if you decrease the size, you'll need to restart your computer. It is recommend that you don't disable or delete the paging file.

My five favorite Windows tips for maintaining your computer

In this article, I am going to share my five favorite tips for maintaining Microsoft Windows.

  1. Checkdisk. This is the first thing I do when I get a system here in the shop. Errors do occur and files do get damaged. Best to take care of this first thing. And yes, this can take a while, so I always recommend leaving your system on and let Checkdisk run over night. That way your computer is ready to go first thing in the morning.

    For more information on how to perform a Checkdisk, just select your operating system below:
    Windows 7 Checkdisk
    Windows Vista Checkdisk
    Windows XP Checkdisk

  2. Delete Temporary files. This is the first place to look when you need to free up some hard disk space. These files served their propose at one time, but for some unknown reason, the program that used them did not delete them. When deleting temporary files, some may be still in use. I recommend deleting all files / folders that are over a week old. See below for the location of temporary files folder on your version of Windows:

    Windows 7 / Vista - C:\Users\username\AppData\Local\Temp
    Windows XP - C:\Documents and Settings\username\Local Settings\Temp

  3. Delete the Internet Explorer cache. This is the second place to look when you need to free up some hard disk space. I have seen systems with over 9 Gb of temporary files. Open Internet Explorer and go to Tools > Internet Options and change the following settings:

    Internet Explorer Temporary Files
    Internet Explorer Temporary Files

  4. Pagefile optimization. This one often gets over looked. There is a formula for calculating the correct pagefile size. Minimum pagefile size is one and a half (1.5) x amount of memory. Maximum pagefile size is three (3) x minimum pagefile size. Say you have 4 Gb (4,096 Mb) of memory. 1.5 x 4,096 = 6,144 Mb would be the min. pagefile size and 3 x 6,144 = 18,432 Mb would be the max. pagefile size.

    Windows Pagefile Settings

    To change the pagefile size, you need to access the System Properties dialog box. Press Windows logo key + Pause (Windows 7 / Vista users select 'Advanced' system settings). Then select the 'Advanced' tab and under 'Performance' click on Settings. Then select the 'Advanced' tab and under 'Virtual memory' click on Change.

    For more information on how to change the pagefile size, just select your operating system below:
    Windows 7 Pagefile Settings
    Windows Vista Pagefile Settings
    Windows XP Pagefile Settings

  5. Disk Defragmenter. Probably the best single thing you can do to speed up your computer. Imagine a filing cabinet where all of the folders were out of order and files were misplaced through out the cabinet. How could you find anything? Same thing with your hard drive. Disk Defragmenter takes care of that for you. And you can run it as a scheduled task too.

    For more information on how to use Disk Defragmenter, just select your operating system below:
    Windows 7 Disk Defragmenter
    Windows Vista Disk Defragmenter
    Windows XP Disk Defragmenter

Give these five tips a try and see how much more performance you can get from your computer,
Scott

Simple security with Microsoft Security Essentials

In this article, I am going to spotlight Microsoft Security Essentials (MSE). This is not Microsoft's first venture into the ant-virus market, but it is probably the best. Having used the some of the more well know anti-virus software (Norton / Symantec, McAfee, etc.) for over a decade, I decided to give MSE a try.

Microsoft Security Essentials

All of articles I had read on Microsoft Security Essentials were quite positive, so I installed its on my netbook running Windows 7 in June. Since then, I have taken the netbook on several on-site service calls and on vacation. I am happy to report that the netbook remains virus free. What I really like is the small footprint the software has. It does not take five minutes to start up Windows, as can happen on systems with limited resources (such as a netbooks).

MSE works quite well with Windows 7 built-in firewall. The interface is clean and easy to use, unlike some of the anti-virus software out there. It's easy enough for a novice user to navigate. It also integrates into Windows Update as well. Here's a quote from Microsoft's website:

Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.

Microsoft Security Essentials is a free* download from Microsoft that is simple to install, easy to use, and always kept up to date so you can be assured your PC is protected by the latest technology. It’s easy to tell if your PC is secure — when you’re green, you’re good. It’s that simple.

Microsoft Security Essentials runs quietly and efficiently in the background so that you are free to use your Windows-based PC the way you want—without interruptions or long computer wait times.

I encourage you to take a look at Microsoft Security Essentials. It's simple and free.
Scott

Windows 7 User Account Control (UAC) and Failed Installations

I recently got an e-mail asking if I knew why the installation of software that was downloaded would fail on Windows 7. This issue is actually part of Windows 7's User Account Control. Let's say I was surfing the web with Internet Explorer (IE) and clicked to download a file. When the IE download prompt comes up, I can 'Run' or 'Save As' the file. If I select 'Run', I am running the application as a standard user, even if I have administrator privileges. Let me explain.

By default, standard users and administrators access resources and run applications in the security context of standard users. When a user logs on to a computer, the system creates an access token for that user. The access token contains information about the level of access that the user is granted, including specific security identifiers (SIDs) and Windows privileges.

When an administrator logs on, two separate access tokens are created for the user: a standard user access token and an administrator access token. The standard user access token contains the same user-specific information as the administrator access token, but the administrative Windows privileges and SIDs are removed. The standard user access token is used to start applications that do not perform administrative tasks (standard user applications), such as Internet Explorer. The standard user access token is then used to display the desktop (Explorer.exe). As a result, all applications run as a standard user unless a user provides consent or credentials to approve an application to use a full administrative access token.

The best way to be sure you are running a downloaded application with the administrator token is to open Windows Explorer, navigate to the directory you downloaded the file to, right-click on the file and select 'Run as Administrator'.

Enjoy,
Scott

Stitching panoramic images with Microsoft's Image Composite Editor and Photosynth

I recently had the opportunity to go out and shoot some landscape photos in Vermont. I had wanted to try out Microsoft's Image Composite Editor. ICE (that's the acronym) is an advanced panoramic image stitcher that uses Photosynth technology. Here's a quote from the Photosynth site.

Using techniques from the field of computer vision, Photosynth examines images for similarities to each other and uses that information to estimate the shape of the subject and the vantage point each photo was taken from. With this information, we recreate the space and use it as a canvas to display and navigate through the photos.

One of the key features of Microsoft's ICE is the ability to drag and drop hundreds of photos taken in a rectangular grid of rows and columns. With that in mind, I set out to take some photos. I attached a wide angle lens on to my Nikon D40 and I was on my way.


Over two hundred images were used to create this composite

I decided to go all the way and also installed Microsoft Photosynth. I created an account on their site, so I could upload the the composite images from Microsoft ICE. This is one of two options for saving the final composite image. The other being an image format (.JPG, .PSD, etc.). Click here to see more of my photosynths.

Here's a list of features from the Microsoft ICE home page:

  • Accelerated stitching on multiple CPU cores
  • Ability to publish, view, and share panoramas on the Photosynth web site
  • Support for "structured panoramas" - panoramas consisting of hundreds of photos taken in a rectangular grid of rows and columns (usually by a robotic device like the GigaPan tripod heads)
  • No image size limitation - stitch gigapixel panoramas
  • Support for input images with 8 or 16 bits per component
  • Ability to read raw images using WIC codecs
  • Photoshop layer and large document support
  • State-of-the-art stitching engine
  • Automatic exposure blending
  • Choice of planar, cylindrical, or spherical projection
  • Orientation tool for adjusting panorama rotation
  • Automatic cropping to maximum image area
  • Native support for 64-bit operating systems
  • Wide range of output formats, including JPEG, TIFF, BMP, PNG, HD Photo, and Silverlight Deep Zoom

I am really satisfied with the output from Microsoft's ICE and Photosynth and encourage you to give it a try for yourself.

Enjoy,
Scott

Customer service is #1

Here at Geeks in Phoenix, we take pride in providing excellent customer service. From computer repair, virus removal and data recovery, we aim to give the highest quality of service.

Bring your computer to us and save

Our in-shop computer repair service  is based on the time we work on your computer, not the time it takes your computer to work!

Contact us

Geeks in Phoenix
4722 East Monte Vista Road
Phoenix, Arizona 85008
(602) 795-1111

Like Geeks in Phoenix on Facebook

Follow Geeks in Phoenix on Twitter

Watch Geeks in Phoenix on YouTube

Geeks in Phoenix is an IT consulting company specializing in all aspects of Computer Repair / PC Repair / Laptop Repair. Since 2008, our expert computer repair technicians have been providing outstanding Computer Repair, Virus Removal, Data Recovery, Photo Manipulation and Website Support.

Geeks in Phoenix have the best computer repair technicians providing computer repair and service in Phoenix, Scottsdale and Tempe Arizona. We offer In-Shop, On-Site and Remote (with stable Internet connection) computer repair service.

Copyright © 2017 Geeks in Phoenix LLC