Good care must be taken to ensure that a battery lasts a long life, this includes paying attention to it's charging cycles, the temperature, using the proper charger, etc. Here are a few pointers you need to keep in mind.

Your Li-ion battery has a limited number of charge cycles as time progress the capacity of the battery is going to reduce by a little bit till the point that you cannot aford to unplug the charger from your phone at all. As average  Li-on battery lasts about 1200 charges cycles. For example, if there are 365 days in a year and let's say you charge 3000 times a year, your battery should last 4 years before needing a replacement.

Li-on batteries also suffer from what is termed as the memory effect. When a battery is charged after having only been partially discharged, it sort of "remembers" the partial capacity, so the battery will show that it is fully charged when  it actually is not.  Given the cut-off mechanism in phones these days, when a battery tells that it is full the phone stops the charging, thus as your battery progress through its charging cycles, your battery life reduces by a small amount each time. This is why you should always discharge your phone as much as possible before commencing another charge cycle (i.e plugging the charger in).

How to protect

Use a few of your phone’s features as necessary to reduce consumption. Switch off Bluetooth, WiFi, 3G when not needed, smart phones these days come with a quick menu wherein these features can be managed without much fuss. Adjust the screen brightness to a level that is easy on the eyes and at the same time lower that half the screen’s brightness to ensure a long discharge cycle.An important factor to a consider for phones slightly older would be to use the proper charger that came with it, as the amperage of the current inflow may cause the battery to bloat if it is higher than what the battery was designed to handle. Nowadays phones use USB to charge so any compatible outlet should do fine but stay away from cheap chargers as they might not be up to standard and could cause some damage to your device. More at http://adf.ly/UfL1M

Theory of How this Repair Works

First of all you can go ahead and make yourself an omelet and a banana split to keep you company during this project, as they do not really do a whole lot for repairing a CD as you may have seen on YouTube or equivalent. While some of you may have received positive results from using bananas and such, I have not, and I must say that the science just isn't there to back it up.

The theory behind fixing a scratched CD, is similar to fixing scratched paint on your car. The key is to polish out the deep scratches by using a substance that will create very fine scratches, and essentially polish the CD. To do this you can use any number of plastic polishes, rubbing compounds, and some have even reported good results with a metal polish, like Brasso.

Rubbing Compound (Polish) Method

I prefer the good old standby of automotive grade rubbing compound, such as from 3M. Admittedly, 3M polish is not necessarily a green product, it is after all synthetic in its basic composition, but you will need only a dab and quite frankly, there is no natural product that will even come close to the power of this stuff when it comes to resurfacing a badly scratched CD.

The experts tell you to always polish in a straight line from the radius of the center to the outside, rather than polish in circles. While this is good advice for the most part, since small circular scratches have been known to throw off the laser tracking system of a player, most tracking systems today are far superior to the ones we remember from the 90's. So, if you are willing to let the rubbing compound breakdown to its final stages, circle polishing can work well too.

When I refer to letting the rubbing compound breakdown, I am saying the rubbing compound formula essentially contains a grit that is designed to scratch the surface you are polishing, and wear down the deeper scratches until they are closer to the same height as the rest of the CD. It does this by starting out with a heavy grit, which breaks down over the polishing course into finer and finer grit, until it eventually leaves a mirror polished surface. But this is only if you put enough elbow grease into it.

I have found that circular polishing works just as well as radius polishing, but you can follow whatever advice you like, as this is simply a matter of opinion and personal experience. But what if you need to fix a CD right away and don't want to travel out to your nearest store to grab a bottle of polish, in such a case, toothpaste works reasonably well too.

Toothpaste Method

 

Toothpaste is designed much the same way as a rubbing compound, in that it is manufactured with a gritty substance, which gently scratches the enamel on the teeth, to clean and polish them. It can offer your CDs the same service, albeit not to quite the extend as the polish, but if the scratches are not too bad, it may just do the job.

Start with the most simple toothpaste you can find. I personally like Tom's of Maine Natural Toothpaste as it contains a basic enamel polish, without all the fancy gels, swirls, glitter, and bubble gum flavors. All you want is a good old fashioned white toothpaste. There is no need for frills here. Squeeze a smidgen of paste on the CD and rub it in using a straight sweeping motion with your finger from the center radius of the CD to the outside. Work your way around the CD using this motion until the CD is completely covered with a thin layer of the toothpaste.

If the CD is badly scratched, you may want to rub the toothpaste around the radius of the circle several times. Once finished, let the toothpaste dry to the touch. Hold the CD under your sink with running water and gently rub the tooth paste off. When satisfied with the cleanliness of the CD, gently dry it with a clean, soft cloth.

Finish with Some Wax

 

It is not a bad idea to put a coat of car wax on the CD (if you have some available). I prefer using an all natural 100% carnauba wax, which is made from the outside surface of a leaf. It is super strong and also friendly towards the environment. It will first of all, help fill-in any remaining deep scratches, second, protect the CD from being scratched in the future, and third, help repel any future dust and dirt from finding its way onto your newly cleaned and resurfaced CD.

Your CD should be good to play after all this hard work. If not, you can try the entire process once more and hope for better results. There have always been more than just one way to re-skin a CD, so share your own experiences, defeats, and triumphs with us.

You might have used Bitlocker to protect your drive from being accessed by others. If you haven't used bitlocker then don't worry I will guide you through the process later in this post. If you unlocked the drive locked with bitlocker, you have to restart the machine again to lock the drive. So I will guide you through some very simple yet the most effective process to lock your unencrypted drive again without restarting.

First I will guide you through the process of encrypting the drive through bitlocker. This is for those who don't know how to use bitlocker. If you have used bitlocker then please skip these steps and goto the next steps down here.

1. Goto "control panel"

2. Click on "BitLocker Drive Encryption"

             

3. Select the drive which you want to lock with bitlocker and click "Turn on Bitlocker" But remember, once the encryption part is started, you should not shutdown or restart your computer until the encryption is finished. Otherwise your whole drive would get damages and you will have yo format your drive. So if you have lots of datas stored in the drive, first move the files to some other location and put only few files in the drive which you want to lock.

4. Then provide the password that you want to use to unlock the drive in the furture. Then follow the steps properly.

5. Then setup will begin encrypting your drive, it will take a while depending upon your system and the space used by the disk. After the encryption finishes, your machine will reboot and the drive will be locked.

6. To unlock the drive you will just need to double click on the drive and provide the password that you set for it.


So the problem that you and most of the users will face is that when you unlock the drive, you will have to restart the system to lock the drive again. Well here's the solution. As I promised before, here are the simple steps to lock your drive again without restarting your computer.

1. Right click on "Command Prompt" and click "Run as administrator".
2. Now type manage-bde -lock x: on command prompt where,
                                                     'x' is drive letter u want to unlock

3. That's  it. Your drive will be locked again.

To do some higher level settings in your computer, you will require administrative privileges to perform the action. Even if your user account is administrator or even more, the only administrator, you still won't have the access to get administrative privilege. So follow these steps set up administrative privilege in your user account.

1.Click on "Computer".

2.Right click on the Hard Disk icon where your OS is installed on and click "Properties".

3.Click the "Security" tab.

4.Click the "Advanced" tab.

5.Click the "Change Permissions" button located after the Permission Entries list.

6.A new window will appear on your screen. Such a window contains a list of all the user accounts available on your computer.

7.Select the user account you want to give total control over your Windows and click the "Edit" button.

8.Now, tick the checkbox labeled “Total Control” and press OK.

You are done. Now you have finished setting up administrative privilege in your user account.