Windows

Know Different Bluetooth Profiles for Best Performance

Bluetooth technology is elaborated in its profile. It can be said as slices in the protocol stack and defines the ability in a protocol which are found in the profile.

For a protocol each parameter ranges are in the profile. Profile reduces the interoperability trouble in between different products. These in anyway not increase the specification of the Bluetooth. Owing to this reason one can add profiles if it is necessary.  The Bluetooth specified technology is same but the method that is put into used is defined.

Generic Access Profile or GAP in which all profiles are based on. In the GAP list,- 9 profiles and they are mentioned below:

  1. Audio/Video Remote Control – AVRCP
  2. Extended Service Discovery Profile – ESDP
  3. Common ISDN Access  – CIP
  4. PUBLIC Area Network Profile – PAN
  5. Hardcopy Cable Replacement – HCRP
  6. Generic Audio/Visual Distribution  – GAVDP
  7. Advanced Audio Distribution  – A2DP
  8. Video Distribution Profile – VDP
  9. Human Interface Device  – HID

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Hiren’s Boot CD – The Great Daignostic Utility

Hiren’s BootCD is a bootable CD which contains number of System Diagnostic and maintainance program. It can be used to Boot your system if you Operating system is corrupted and not responding. This CD contains several tools including disk cloning and imaging tools, MBR tools, partitioning agents, data recovery tools, system performance benchmarks, BIOS tools, and Several more which can be used to fix your problems. Several tools contained on Cd does the same thing but they are included on CD to provide users with number of choice and UI options.

hirens_boot_cd_menu
Hiren’s Boot CD Menu Screen

Here is a list of tools which are included on the CD —

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RamDisk – Using More than 3GB ram on 32 bit OS

So You have just upgraded your RAM on 32 bit OS from 3Gb to 8GB and what’s this, system properties still shows only 3.xx GB of memory in use…

This happens because windows can address at most 2 ^ 32 address location in RAM which is just above 3GB, so it discards anything above 3GB. There is no way 32bit Windows can use more than 3GB however, there is an application which can make use of extra ram as Paging File.  Using extra ram as Paging file will greatly improve your systems performance because of access time difference between RAM and HDD…

To create RamDisk from your excess RAM you need an application call “RAMDISK” (http://www.superspeed.com/desktop/ramdisk.php). It will cost you minimum $34.95 for Basic Version for more details on Pricing look at above mentioned page.

Ramdisk is used to create a Virtual disk from the excess RAM which is not used by 32bit WIndows Operating System. The Virtual RAMDisk appears in my computer like a physical hard disk attached to system for OS and other programs. You can configure it’s size, drive letter and file system etc, but maximum size you can define is as per available RAM. You can perform all operation as you do in a physical HARD Disk (like copy, cut, move, delete), but files stored on this drive will be erased as soon as you shut down your system because it is created from RAM and will not be permanently stored. RAMDisk can also be shared and used from Network system.

The difference which makes RAMDisk usable above hard disk is access speed. The time required for a hard disk to read data depends on RPM and other Hardware factor where RAMDisk is almost 50 times faster than that.  Reason behind this is very simple that it don’t have any mechanical parts.

How To use RAMDisk for Performance Boost

To Boost system performance using RAMDisk, you need to create a DISK out of your excess ram and then change your Paging file to be stored in this disk, this will reduce the time taken for paging file to read HDD and you will feel a severe performance boost.

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Make USB Drive Write Protected

You might be having some secure data on your PC which you don’t want other user to copy through USB. You can do that by putting a write protection registry hack on your computer.This Hack will work only on Windows Xp SP2 or better and also works on Windows 7.

To enable write protection on USB follow following steps –

  1. Go To Start > Run.
  2. Type ‘Regedit’ in run dialog.
  3. browser to Go to ‘HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies‘.
  4. Create a DWORD value called ‘WriteProtect‘ and set it to 1.
  5. This will disable writing on USB drive, you can still read from USB device. To enable writing change it’s value to 0 or delete the key.

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