I have a Sony Xperia T with Android 4.1.2 Jelly Bean running on it. My phone has become really slow lately and I keep on getting the error that Unfortunately "app" has stopped. It keeps on happening with different apps over time. How can I fix this issue? What can I do to make my phone work a little faster?

I have Windows 8.1 and I use Mozilla Firefox for browsing the Internet. I am trying to open a link from CNET and it redirects me to a page that says Error 404: Page not found. I tried opening on another computer and it opened. Is this an issue with my computer only? How can I remove this error?

I have Windows 7 on my laptop. It is 32 bit version. When I install Google Chrome and open it, it gives an error with error code (0xc00000a5). I really want to fix it. Please guide me how can I remove this error? I have tried reinstalling but to no use. 

I have a Dell N series core i3 laptop. It was all good until a couple of days back when a dialog appeared saying your computer has an IP address conflict. Just after that the internet stopped working. I tried rebooting and it worked but again after some time the message appears. Is someone using my IP address? Is it possible? What can I do to stop this?

I have an HP Pavilion m6 with Microsoft Windows 7 running on in it. Every now and then a message pops up that the Anti Malware Service has stopped working and the Windows starts looking for a solution to the problem. I have Microsoft Security Essentials with no other Anti-Virus. Is this a problem with Security Essentials? How can I fix the issue? 

I am trying to open a PDF document on the web but it is not opening and it keeps on giving the error that the adobe reader which is running cannot open the the required PDF document and I need to have Adobe Acrobat / Reader version 8 or 9. I already have the latest version. Should I delete and install the previous version? Or is Adobe Reader not integrated into my browser? Please help.

What is a Man in the Browser Attack? Is it in some way connected to the more well known Man in the Middle attacks? How than is it different from Man in the middle attacks? As suggested by the name how the web is browser used to lodge the attack here?

Kaspersky lab reported a malware named Luuuk which had hit a major European bank and had stolen half a million Euros in just one week. What else is known about this virus? How did the virus manage to steal such a huge amount in spite of the security norms in place at the bank?

What is the Epic Turla? Reports suggest that the malware has targeted major defense operations in the US in the Middle East. How does the virus propagate? What types of files does it create? How can I identify this virus? Is there a known way yet for disinfecting of this type of malware?

I downloaded the latest iTunes available on the official Apple website. After I installed it, it said "iTunes was not installed properly. Please reinstall iTunes. Error 7 (Windows Error 193)". I tried reinstalling iTunes but still it displays the same error. How can I fix this problem? Is it a Windows related error or iTunes related?