Monthly Archives: March 2016

How To Recover Missing Files After Upgrading to Windows 10

Are your documents gone after upgrading to windows 10? Did you notice that your files disappeared when Windows 10 was installed? This guide will help you get your files, pictures and documents back where they should be.

After upgrading to windows 10, some people have reported their files not showing when viewing the documents folder, photos folder, etc. Having had to troubleshoot resolve this issue several times at work, I decided to write about it.

The good news is that your files are likely not gone, they just aren’t being found. The reason is because the “documents”, “photos”, “downloads” , “music”, and “videos” folders are not linking to the correct location. If you see “TEMP.” in the location field of the documents folder, then it is likely the source of your issue.

You can fix this with the steps listed below:

 

Step 1: Open the file explorer by left clicking the folder icon on the taskbar.

Step 2: right click Documents, and select properties. Switch to the location tab on the window that pops up.

step1files

Step 3: Change the location to C:\Users\YourUserName\Documents

*Replace “YourUserName” with the name of your user account.

*If C:\ isn’t your root drive, change C:\ to whichever letter contains your OS installation(It’s usually C:\ though)

step2files

This is how it should look, although “David” would be replaced exactly with your user account name. Make sure to use backslashes(\) like I did, and not forward slashes(/)!

Step 4: Repeat the process for pictures, videos, music, and downloads. For example, for pictures, change the location to C:\Users\YourUserName\Pictures.

 

The correct file locations(change “YourUserName” to your user account name)

Documents: C:\Users\YourUsername\Documents

Pictures: C:\Users\YourUserName\Pictures

Downloads: C:\Users\YourUserName\Downloads

Videos: C:\Users\YourUsername\Videos

Music: C:\Users\YourUserName\Music

 

If you can’t get this to work, you can always go back to windows 7/8 by left clicking the start button, going to settings, selecting “update and recovery” then selecting the return to Windows 7/8 option. Keep in mind you only have 1 month to go back. You can also try to find your files by doing a search for their file extension, and moving them. For example, the file extension for a modern Word document is “.Docx”

MIT Built a Quantum Computer Using Only 5 Atoms

The Massachusetts Institute of Technology has developed a quantum computer that factors numbers, using only 5 atoms. The algorithm for factoring the numbers was created by Peter Shor, a professor at MIT, back in 1994. Until now, that algorithm had never been used by an actual quantum computer.

In traditional computing, logic is binary, meaning it takes one of two paths with each logic step. In binary, it is considered to be made up of 0’s and 1’s. In binary, only one of those values is active. In a quantum computer, qubits are used, which mean both 0 and 1 can be true at the same time. This enables multiple calculations to occur concurrently, allowing for substantially faster computing.

The quantum device developed by MIT is quite application specific, as it currently only factors the number 15, which finds the prime numbers 3 and 5. four of the five atoms act as logic gates using laser pulses, and the last atom is used for storage and output of the results. While the device offers very little purpose in the real world, it acts as a powerful proof of concept, and a very important landmark for the development of quantum computing technology. The device can likely be scaled to perform more complex factoring operations in the future, as well as possibly taking input in some way.

Quantum computing is very expensive, so it’s not something that would be sold to consumers any time soon, although it’s highly probable that governments will actively seek out quantum computers that can crack encryption. Due to the way quantum computing operates, most tasks done today on silicon chips won’t work on or won’t benefit from a quantum computer. Only very specific tasks that operate in parallel such as brute force guess and check operations are expected to benefit from quantum computing. Even if quantum computers could be made at affordable prices, complex applications such as games or business applications won’t benefit, due to the massive amount of serial logic involved in their operations.

Encryption is in Danger

Encryption is crucial to maintaining security in all network traffic which includes banks, the health care industry, and major corporations. Factoring plays a crucial role in current encryption technology. With traditional 2D binary computing, brute forcing current encryption algorithms is borderline impossible with how much time and power it takes. The development of quantum computing poses a threat to encryption by potentially being capable of brute forcing encryption. The development of quantum computing-resistant encryption may be necessary if governments begin to develop fully functional quantum computers. Alternative currencies such as Bitcoin are at risk as well, as its entire protocol is built upon encryption.

Samsung’s 15.36 TB Solid State Drive’s Have Begun Shipping

Samsung announced yesterday that it has begun shipping of its new 15.36 TB SSD, the “PM1633a”. The drives utilize a technology called 3D NAND. 3D NAND is a revolutionary technology that is helping improve storage density and pricing of SSDs, making them increasingly competitive with Hard Drives. Multiple layers of cells are stacked on top of each other in the die, to achieve a high level of storage density. The drive uses multiple 256 Gb(Gigabit) dies for storage, and contains a massive 16 GB of DRAM in its controller as a form of cache for managing the data and operations.  16 of these 256 Gb dies are stacked to create a 512 GB package(There are 8 bits in a byte). The drive is made up of 32 of these packages. The PM1633a provides random read speeds of up to 200,000 IOPS(Input/Output Operations Per Second), and random write speeds of up to 32,000 IOPS. The speed in data throughput is up to 1200 MB/S.
The drive is mainly for enterprise usage, as it uses Serial-Attached SCSI as its interface, rather than SATA or PCIe. The drive can withstand writing to the entire capacity of the drive once a day, for up to 5 years. This means that the entire capacity can be written over 1800 times before it loses its ability to write. Samsung states this is 2-10 times the amount of writes provided by most SATA-based SSDs. With SSD’s we’ve seen that they can last much longer than they’re rated for, so its possible that this drive could last for 3000+ full writes, it just isn’t guaranteed. Unfortunately we are unlikely to see that benchmarked, as this drive will not be cheap. Pricing has not been announced, however given its incredibly fast read speeds, and high longevity, the device will probably cost more per GB than consumer SSD’s.
Samsung will also offer a variety of drives within the PM1633a family with varying capacities, ranging from as small as 480 GB, to this monsterous 15.36 TB drive.

The Displayport 1.4 Open Standard Has Been Published By VESA

While the actual bitrate of Displayport 1.4 remains the same as Displayport 1.3, DP 1.4 still offers much more functionality over 1.3 by using multiple technologies, which makes it more efficient. By utilizing transport compression, it can achieve resolutions of up to 8K @ 60 hz and 4K 120 HZ, with HDR enabled. It is unclear how the compression affects the quality, as the publication does not state if it is a lossy or a lossless compression method. Without compression enabled, Displayport 1.4 supports up to 5K(5120×2880). Displayport 1.4 also opens up support for USB-C and Thunderbolt.

Another new feature is Multi-Stream Transport(MST). MST allows for a new type of display called a “Segmented Panel Display”, which segments a panel into multiple sections, which may be refreshed at different rates. According to Samsung, Segmented Panel Display can be used to create thinner monitors that consume less power.

Unfortunately, Adaptive-Sync remains an optional specification, meaning consumers will still have to pay a premium for a Freesync monitor as it is not required by the standard.

You can read the original article by VESA here

AMD Teases Possible External GPU Technology

In a Facebook post, AMD’s Robert Hallock posted a picture of an AMD GPU inside some form of enclosure. He then writes about how external GPUs are perfect for gamers that need the mobility of a ultrathin laptop. At the end, he states that we can expect to hear “more info very soon”.

The idea is that a laptop would contain a CPU with integrated graphics, and be built to be very portable. The external GPU would then connect via a port with high throughput, in order to power games when it is connected. Desktop GPUs offer much higher performance than notebook GPUs, as they have room for much larger heatsinks, can contain larger fans for cooling, and are able to draw more power since the battery is no longer a concern. In the picture, we can see that the external GPU takes power directly from the wall.

This type of technology is perfect for anyone that needs a laptop for mobility such as work or college, but wants to be able to sit down at home and play games with intensive graphics. Buying an ultrathin notebook with an i7 CPU and a high end external GPU would be much cheaper and more effective than buying a low-mid end notebook for work/school, and building/buying a high end gaming rig for games at home. The only downside to this technology is that notebook CPUs still have a weaker CPU, which can hurt performance in some games, and that it’s very impractical to game anywhere else but home.

We’ve already seen external GPU enclosures provided by other companies, but they tend to have proprietary connectors and lack standardization. Robert Hallock hinted towards “standardized connectors, cables, drivers, plug’n’play, OS support, etc.”

The public post can be viewed here