How to type the dollar sign in Windows Phone/Nokia Lumia?

Are you getting a rupee symbol or your local currency symbol in your Windows Phone keyboard? Touch and hold your local currency symbol for more currency options.

Antivirus for Windows Phone 8

Could not find any antivirus software for your Windows Phone? No worries, Windows Phone 8 has many security features build in and you really do not need an Antivirus. You can read more here.

Yahoo Messanger for Windows Phone 8

Unfortunately there is no messenger application from Yahoo for Windows Phone. But you can try the Nokia Chat which is powered by Yahoo.

Windows Phone: Lumia 620 vs Lumia 520

Do not go by the comparison websites!! Especially with Lumia 620 vs Lumia 520. It will easily give you a feel that 520 is a better value for money. But there are many differences among the two.

• Lumia 620 has front camera
• Camera flash
• Clear black display
• NFC
• Compass
• Nokia's on super sensitive touch
• Higher pixel density
• Faster USB charger (wall socket has a USB port & its 1.3AH vs 700mAH of 520's). 

Note: Lumia 520 has an FM radio and slightly bigger battery (1430mAH vs 1300mAH). But most of the websites giving comparisons doesn't even mention these.

Zune does not detect Windows Phone 8

Unfortunately Zune is not the app to sync your Windows Phone 8. You need to get the Windows Phone App for Desktop to sync your contents.

Casio MS-10VC-BU Basic Review

• First thing you will notice in this calculator is the trendy and eye-catchy colorful design.
• Other than the standard AC & C buttons it has a key buffer button which will let you delete every key stroke you made in case of a mistake.
• It can do time calculations and conversions along with tax calculations using a stored tax percentage which you can modify.
• It has large display, two way power and pretty decent plastic build.

Windows: Unable to access microsoft.com

Can you access all other websites but not microsoft.com? This solution has worked for me.

1. Try opening cmd and issue the command 'ipconfig /flushdns'

See if you can access the microsoft.com now. If not:

2. Go to services (services.msc) and stop the 'DNS client' service.

Hopefully you should be able to access microsoft.com now.

Is PC2 5300 667MHz DDR2 RAM backward compatible for PC2 4200 533MHz DDR2 RAM?

Yes PC2 5300 667MHz RAM is compatible for PC2 4200 533MHz. However when you mix a 667MHz RAM with 533MHz RAM, both will run at 533MHz.

Similarly PC2 6400 800MHz is also designed to be backward compatible.

Windows 7: How to prevent cmd from opening new windows?

Are you seeing an unexpected behavior that every time your exe is executed in a new cmd window? Then try using the elevated cmd in Windows 7. In start menu type 'cmd' and press 'Ctrl+Shift+Enter' (instead of 'Enter') to open the cmd window. Now your exe should work in the same cmd window where you trigger it.

Note: The reason for a opening a new cmd window is that your exe needs some elevated permissions to execute which the restricted cmd doesn't have.

Linux executable throw syntax error "(" expected

Your executable should have been made for a different kernel or OS environment. Try recompiling it.

isolinux: No DEFAULT or UI configuration directive found

There are two possible issues:

1. If you are trying to boot from a USB drive then you need to rename your isolinux folder, bin file and cfg file to syslinux.

2. If you are using an older cfg file with an APPEND directive or similar, you will need to add a DEFAULT directive into your cfg file.

Firefox is not detecting Java

Java is not working for you in Firefox? Uninstall all the existing Java installations from your system and install the latest 32 bit Java (Java7u25 as of today). Update your firefox, if there is any updates.

You should be good. If not uninstall Firefox and download the latest version and install it (Once I had to do it), hopefully you should be good.

CNets Download.com - How to download with out all the crapware & toolbars

I really hate that the CNet's downloads come with bundled crapware and toolbars. I really really hate their installer.

But thankfully there is an option to download the needed software with out all these.

make: ngcc: Command not found - while building kernel

Edit .config and make CONFIG_CROSS_COMPILE=""

Probably you will have "n" set to it.

How to extract a jar file?

jar xf <filename.jar>

How to save settings in Putty (permanently)?

1. Make all the settings you need.
2. Then go to Settings > Sessions
3. Select 'Default Settings' and click 'Save'

 

You are done :)

How to extract the contents of initrd or initrd.img file?

If you have an initrd.img file use the below command to get the initrd file.

gunzip < <your_initrd.img>

You can mount the initrd file using the command:

mount -ro loop <your_initrd_file> <target_dir>

How to debug a child process using GDB?

show follow-fork-mode will give you which process you will follow after a fork by default. You can set this to parent/child using:
set follow-fork-mode <child/parent>

show detach-on-fork will tell you if we detach to one of the process after a fork. You can set this to on/off using:
set detach-on-fork <on/off>

Firefox - Error code: sec_error_reused_issuer_and_serial

Most likely it is due to a conflict in self signed certificate that you added as exception in Firefox.

Close Firefox & delete C:\Documents and Settings\<userAccount>\Application Data\Mozilla\Firefox\Profiles\<userProfile>\cert8.db. This will basically remove all the exceptions that you have added earlier.

Note: At times I had to delete the cert_override.txt file too from the same folder to get things working.

Open Firefox again, you should be good.

How to get the classic start menu in Windows 8?

Here are the steps to get a classic start menu with out any 3rd party apps:

1. Right click on taskbar
2. Select Toolbars > New toolbar
3. Enter "%ProgramData%\Microsoft\Windows\Start Menu\Programs" as the value for Folder:
4. Click on the 'Select Folder' button

You are done.

How to partition hard disk using Live CD (Ubuntu)

I end-up destroying the Windows primary partition after installing Ubuntu and later the Windows was complaining 'No hard disk found due to the incorrect partitions'.

To repartition your hard disk using Ubuntu:
1. Boot from the Ubuntu as a Live OS
2. Press Ctrl + Alt + T to start the terminal
3. Issue the command 'sudo gparted'

Now the gparted GUI will be opened. Delete the partitions and recreate a Primary partition and an Extended partition. The extended partition can be sub divided again into logical partitions.

How to loop through a std::map and deleting entries using iterator in C++

Once you call map.erase(iterator) the iterator will be invalidated. What you need to do is something like:

for(iterator=map.begin(); iterator != map.end(); )
{
    del_iterator = iterator;
    iterator++;
    map.erase(del_iterator);
}

How to Enable/Disable Expire Passwords in Windows?

1. Open 'Local users and groups' under computer management and choose the user or group you need to make the change
2. Open the properties by right clicking on it
3. Enable or disable 'password never expires' check box under 'General' Tab

Mount filesystem as read only or read write in RHEV/RHEL

mount -oremount,<rw/ro> <partition>

How to block the ads in Youtube?

Try using Adblock Plus with Firefox. Its available in Chrome as well but for preventing ISP ads Firefox works better in my case.

How to access shell/console in RHEV Hypervisor

Once you are in the RHEV (Red Hat Enterprise Virtualization) home screen/SSH to the RHEV system press 'F2' to access the console.

RHEV Hypervisor - SSH not working

I have an RHEV 6.3 and by default SSH will be disabled in it. You need to enable SSH from Security and then make sure you are doing the SSH as

ssh admin@<your_ip> because in RHEV 6.3 the default administrator account is not root but admin.

Edit: Please see the anonymous comment #1 below

HP EliteBook 8460p/8560p Fingerprint Sensor/Software

After a days research I could get it working in couple of ways :) Here is the easiest way that I could find to start using the fingerprint sensor in your EliteBook.

1. Install the Validity Fingerpint driver
2. HP ProtectTools Security Manager

I had issues while installing the above version of ProtectTools (could be because I tried different versions of drivers & software from HP to get it work and I could messed up the registry).

These steps by msawyer91 taken from HP Discussion Boards worked for me.

1. Launch Registry Editor (regedit.exe).
2. Drill down to HKLM\System\CurrentControlSet\Control\Lsa.
3. Here you should see a multi-string value (REG_MULTI_SZ) named "Notification Packages".  (In my case this was missing.)
4. If this value does not exist, create it.  Right-click in the right-hand pane and choose "New > Multi-String Value."  (It's very important you choose Multi-String Value.)  Name it Notification Packages (there is a space in the name).
5. Double-click on Notification Packages to edit it.
6. Type the value scecli on the first line, then click OK.
7. Close Registry Editor.
8. Retry the installation.

After a reboot you need to enable 'Windows Logon Security' in HP ProtectTools and entroll two of your fingers as your authentication credentials.

You are done :)