There may come a time when your Windows-based computer starts to run improperly. Installing and uninstalling software, viruses, and malware are just a few things that can corrupt the integrity of system files. When it comes to computer repair on a system running Windows, I always like to check for corrupt system files. You can too with Windows built-in System File Checker (SFC).

System File Checker running in Command Prompt inside of Windows 8

SFC scans the integrity of all protected system files and replaces incorrect versions with correct Microsoft versions. Everything SFC does is documented in the CBS.log file. If SFC finds any files that it cannot repair, check the CBS.log for more information. See the bottom of command-line syntax(s) and parameter(s) for details on how to view the CBS.log.

Running SFC in Windows Vista, Windows 7, and Windows 8

To ensure that SFC runs with administrator privileges on Windows Vista, Windows 7, and Windows 8, you will need to run it at an administrative Command Prompt.

1. Open a Command Prompt with Administrative privileges
   
   

   How to open a Command Prompt with Administrator privileges in Windows Vista and Windows 7

   How to open a Command Prompt with Administrator privileges in Windows 8

2. Use the following command line syntax(s) and parameter(s) to run SFC:

sfc [/scannow] [/verifyonly] [/scanfile=<file>] [/verifyfile=<file>] [/offwinddir=<offline windows directory>/offbootdir=<offline boot directory>]

You can view the CBS.log file in Notepad using the following code at the same administrative Command Prompt used to start SFC.
notepad %systemroot%\Logs\CBS\CBS.log

Running SFC in Windows XP

To use SFC, you will need to open a Command Prompt.

1. Click the Start button, then Programs, Accessories, and click on Command Prompt
   or
   Press + R. This will bring up the Run dialog box. Type CMD and click OK
2. Use the following command line syntax(s) and parameter(s) to run SFC:

sfc [/scannow] [/scanonce] [/scanboot] [/revert] [/purgecache] [/cachesize=<x>]

When SFC is done, you can view the log file in Notepad using the following code at the same Command Prompt used to start SFC.
notepad %systemroot%\Logs\CBS\CBS.log

At some point in time, you may need to run a program or command from a Command Prompt with Administrative privileges. Some of the best features inside Windows Vista and Windows 7 are only accessible through an administrative Command Prompt. Here's how to open a Command Prompt with Administrator privileges in Windows Vista and Windows 7.

A Command Prompt in Windows 7 with Administrator privileges

1. Left-click on the Start button.
2. Left-click on All Programs.
3. Left-click on Accessories.
4. Right-click on Command Prompt.
5. On the context menu that appears, left-click on Run as administrator. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

or

1. Left-click on the Start button.
2. In the search box above the Start button, type Command Prompt.
3. In the list of results, right-click Command Prompt.
4. On the context menu that appears, left-click Run as administrator. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

or

1. Press the Windows logo key + X to bring up the Power User command menu.
2. Left-click on Command Prompt (Admin). If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

Like a lot of people, I use Microsoft Outlook as a PIM (Personal Information Manager). And being in the computer repair industry, I need to keep all of my data (contacts, calendar, etc.) synchronized and up to date on both my PC and smartphone. I found I can do all of this quite easily with CompanionLink.

CompanionLink 5 for Outlook setup screen

I wrote an article a while back about syncing Outlook with my Android phone using CompanionLink on my PC and DejaOffice on my Android. It works because you install CompanionLink on your PC or Mac and install DejaOffice on your Android, iPhone / iPad, Blackberry, etc. You then define what database (Outlook, ATC!, etc.) and what fields (contacts, calendar, etc.) you want to sync.

DejaOffice 2.2 main screen

Recently they released a new version of both CompanionLink (V5) and DejaOffice (V2.2) with more capabilities and features. They have multiple versions for different applications (I use CompanionLink for Outlook). Here's a quote from their website on the products they offer:

Our products work with Android, iPhone, iPad, BlackBerry, HP webOS, Palm OS, and Windows devices. We also sync with Google, Gmail, Google Apps, and Windows Live (Hotmail) accounts

CompanionLink for Outlook
Sync Microsoft Outlook with Android, iPhone, iPad, BlackBerry, Windows Phone, or any Google/Gmail account. Supports two-way sync of contacts, calendar, tasks and notes.

CompanionLink for Palm Desktop
Sync Palm Desktop or Pimlical with smartphones, tablets, or any Google/Gmail account. Supports two-way sync of contacts, calendar, tasks and memos.

CompanionLink Express
Sync ACT!, Lotus Notes, HighRise, or GroupWise with smartphones, tablets, or any Google/Gmail account. Supports two-way sync of contacts, calendar, tasks and notes.

CompanionLink Professional
Sync Salesforce CRM, Goldmine, or any other supported database with smartphones, tablets, or any Google/Gmail account. Includes all the features of CompanionLink Express, plus the ability to sync to from multiple databases, sync with up to 5 devices, and advanced sync options.

CompanionLink for Google
Sync Microsoft Outlook contacts and calendar to Google Contacts, Google Calendar, and Google Tasks. Works with any Google, Gmail, or Google Apps account. Two-way sync is fully supported so you can make changes to data in Outlook or in Google.

CompanionLink for Outlook.com / Windows Live
Sync Outlook with your Windows Live Hotmail account. Supports two-way sync of contacts, calendar, and tasks.

CompanionLink for Time & Chaos
Sync Time & Chaos with smartphones, tablets, or any Google/Gmail account. Supports two-way sync of contacts, calendar, tasks and notes.

CompanionLink FA
Sync Wise Agent, Infusionsoft, SalesJunction, or Respond with smartphones, tablets, Outlook, or any Google/Gmail account. Supports two-way sync of contacts, calendar, tasks and notes.

CompanionLink for Mac
Sync Mac's Address Book and iCal with any Android device. You can also keep Outlook for Mac in sync with Android. Requires OS X Lion (10.7) or Mountain Lion (10.8).

For more information on CompanionLink and DejaOffice, follow the links below:

CompanionLink

CompanionLink FAQ's

Do you want to clean up and optimize your computer but don't know where to start? Maybe you want to clean out all of the temporary Internet files for security purposes. Or clean up all of the temporary files from other applications to free up some space on your hard drive. You can do all of this and more for free with CCleaner.

The Custom Clean tab inside of CCleaner

CCleaner from Piriform is a complete system optimization tool for Windows. It cleans out temporary Internet files from most browsers (Edge, Firefox, Chrome, etc.) and cleans out various Windows files (recent documents, temporary files, search autocomplete, etc.). It can also repair multiple areas of the registry.

The Registry Cleaner tab inside of CCleaner

CCleaner can also rename, delete, repair, or uninstall programs listed in the Add/Remove Programs section in the Control Panel and the Apps & features section of the Settings app. It can even manage the system restore points. Here's a quote from Piriform's website:

CCleaner is our system optimization, privacy, and cleaning tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities, such as your Internet history. Additionally it contains a fully featured registry cleaner. But the best part is that it's fast (normally taking less than a second to run) and contains NO Spyware or Adware! Cleans the following:

Microsoft Edge
Cache, history, cookies, download history, form history, saved passwords, recently typed URLs.

Firefox
Cache, history, cookies, download history, form history, saved passwords, recently typed URLs.

Google Chrome
Cache, history, cookies, download history, form history, saved passwords, recently typed URLs.

Opera
Temporary files, history, cookies, super cookies, download history.

Safari
Temporary files, history, cookies, super cookies, form history.

Other Supported Browsers
K-Meleon, Rockmelt, Flock, Google Chrome Canary, Chromium, SeaMonkey, Chrome Plus, SRWare Iron, Pale Moon, Phoenix, Netscape Navigator, Avant and Maxthon.

Windows
Recycle Bin, Recent Documents, Temporary files, Log files, Clipboard, DNS Cache, Error Reporting, Memory Dumps, Jump Lists.

Registry Cleaner
Advanced features to remove unused and old entries, including File Extensions, ActiveX Controls, ClassIDs, ProgIDs, Uninstallers, Shared DLLs, Fonts, Help Files, Application Paths, Icons, Invalid Shortcuts and more...

Third-party applications
Removes temp files and recent file lists (MRUs) from many apps including Windows Media Player, eMule, 7-Zip, Microsoft Office, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and many more...

100% Spyware FREE
This software does NOT contain any Spyware, Adware or Viruses.

CCleaner is available in three editions: Free (no support), Professional / Professional Plus, and CCleaner Cloud (business). For more information on CCleaner, follow the links below:

Speed up your PC with CCleaner

CCleaner Cloud for business

Note: the Windows 8 Consumer Preview program expired on 8/1/12 and is no longer available.

You would think that doing computer repair for a living, the last thing I would want to try out is a beta operating system. But I have to admit that I love playing around with new operating systems (been doing it since Windows 95). And now it's time to try out Windows 8. And you can try it out, too, for free, with the Windows 8 Consumer Preview.

Desktop interface inside of the Windows 8 Consumer Preview

The first thing you will notice is that the Start button is gone. It's been replaced by a row of charms that appears when you swipe away from the right side of the screen. And the Start menu from previous versions of Windows is also gone, replaced by the Metro interface. You can access it by clicking on the Start charm on the ride side of the screen or pressing the Windows logo key.

Metro interface inside of the Windows 8 Consumer Preview

The Metro interface inside Windows 8 is more touch screen intensive, incorporating gestures like pinch/stretch and press/hold. But with a little customizing, I made the Metro interface work for me on my desktop computer without a touch screen (I'm a big Windows logo key user). Here's a quote from the Microsoft website:

It's Windows reimagined and reinvented from a solid core of Windows 7 speed and reliability. It's an all-new touch interface. It's a new Windows for new devices. And it's your chance to be one of the first to try it out.

See what's new

Swipe, slide, and zoom
Touch a full-powered PC. It's fast and it's fluid. Take natural, direct, hands-on control.

Apps, front and center
Apps in Windows 8 work together to get things done faster. Get them from the Windows Store.

Your Windows, everywhere
Windows 8 can connect you to your files, photos, people, and settings, wherever you sign in.

Wall-to-wall web
Internet Explorer 10 Consumer Preview brings you immersive web browsing on screens big and small.

The familiar, made better
Still devoted to your mouse and keyboard? Windows 8 makes the tried-and-true feel brand new.

Geek note:
Windows 8 Consumer Preview is a beta version of Windows 8. Fun to play around with but in no way should you use it in a production environment. It is recommended to install it on a virtual machine like VirtualBox or a non-production computer. And remember that some of the features and functions may not work correctly.