Privacy is an issue that is never taken seriously enough. Today, using the right tools, anyone can get into your computer, know what you been doing in the last hours and use that information against you. Running a cleaner to clear the browser cache is useful, but there are places where even the cleaners doesn’t reach.
Traces are sometimes hidden under the operating system. Here are some of those with explanation and procedure to clean them out.
I have already told you about Ways To Track Windows Hidden activities which are recorded automatically. Those were some basic and visual traces but in this post, we will go in depth to see what all activities are traced.
1. DNS Cache
Every time you load a webpage in your browser, Windows passes the request to a DNS server to translate the domain name to an IP address. To save time, the system saves a lot of these equivalences in a separate cache. Needless to say, this information can be easily removed.
If someone opens the DNS cache, for example, using DNSDataView, you know what pages you visit most often. To delete, you can use the same utility or type ipconfig /flushdns in the command line. CCleaner can also do it from the System section, but the box is unchecked by default.
2. Storage Disks and USB Devices Connection Identifier
You might not know that every time you connect a disk to a Windows computer, its identifier is stored in the Windows registry. You can get information as valuable as the serial number, make, model and when the device was modified last time.
To delete these traces, you can use USBOblivion, a portable utility that scans the registry for IDs removable storage devices and removes them.
3. Flash and Java cache
The web browsers cache is limited to web pages and images. Many web applications programmed with Flash and Java are not affected by the classical cache cleanup, since files are stored in the plugins cache. CCleaner can delete both but if you prefer to have more control over what you have to resort to erase panels for each add. For Flash, go to Control Panel and check out the content.
As regards to Java, follow these simple steps in Oracle manual. If you want to prevent Java temporary content stored on your computer, uncheck the first box on the Temporary Files Settings.
4. Paging file (Pagefile.sys)
The paging file, also known as swap space or swap, is used as virtual memory in PC where we do not have enough RAM for some tasks. As a result, confidential data gets swapped. In this article, Microsoft explains, how to clean the Pagefile.sys file every time you turn it off. You must open the Registry Editor (regedit.exe) and change the value of this key ClearPageFileAtShutdown:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
Value of REG_DWORD should be 1. Note that, enabling this clean shutdown takes longer, but you can be sure that there are no passwords or other data in the swap.
Metadata is the identity card of a file. They may contain information about the author, the time the document was created or where it took place editing. Useful to some while dangerous for others to know.
So, Tools like Metastripper are effective to delete Meta Data from system. The best measure, however, is to set up programs in advance to avoid metadata recorded.
Following are two Bonus tips which are also essential so that no stone is left unturned.
When you delete a file from the trash you’re not eliminating completely.
To delete files with a full guarantee of irreversibility, they have to deleted beyond recovery. Proper use of such tools like Undelete360 and the like are effective.
When you create or modify a file, the system takes note of when you took out those operations. Thus, creation date, modification and last access can say a lot about the life of the document. Changing the file modification date is made possible using Timestomp or Follow this tutorial.
Did you know about these Hidden Traces? If yes, How did you deal with it? Also, let us know your views about article in comments.