Soluții

Citrix Receiver – Aplicatiile nu se deschid – launch.ica

• Data 02/02/2020
• Autor ana negulescu
• -6
• 842

Fișierul selectat pentru lansare din Citrix Receiver nu se deschide. Am raportat doar o mică problemă pe care am avut-o cu o statie si Citrix Receiver 4.4,dar care se poate intampla si la versiunea 4.9.

Cum stergem istoricul de activitati de pe Facebook?

• Data 02/02/2020
• Autor thomas murarasu
• -6
• 471

Aceasta prosibilitate a fost anuntata de catre compania Facebook dupa scadalul Cambrige Analytica insa a suferita mai multe amanari din cauza problemelor tehnice .

How to know if your PC hard drive is failing and how to fix it

• Data 02/02/2020
• Autor nabil atia
• -24
• 4065

Hard disc drives (HDD) or simply hard drives (HD) eventually fail. Whether you like it or not, your hard drive cannot run forever. Although hard drive makers often guarantee their products can run for years, there are simply many unpredictable factors that can shorten a hard drive’s lifespan. Fortunately, there are simple tricks that can significantly lengthen it. We hope that this material will be a helpful reference for those looking forward to educate themselves on how to take care and even fix some problems with their own hard drives

Symptoms of hard drive failure

There are often a few telltale signs of a failing hard drive that even novice Windows users will not fail to notice. Below are the most common indicators of a bad hard drive:

Unusual sound. If your computer seems to be making strange sounds during boot up or when during normal use, it’s highly possible that the one or a few of the mechanical components inside the drive is malfunctioning. Hard drives designed for desktops have a single motor that can spin the platter or disc between a range of 5,400 rpm to 10,000 rpm. On top of the rotating disc is a head that reads from and saves to the rotating disc. Sometimes, the head crashes or fails due to damage causing it to come in contact with the rotating disc. Such situation can result to permanent damage to the disc itself. A head crash can produce a trashing or screeching sound and sometimes leads to blue screen of death error. Other components inside the hard drive can produce sound if they’re damaged as well so if you hear any abnormal sound coming from the hard drive area, make sure to turn the computer off right away. This may help you salvage some important files later.

Corrupted or lost files. Another thing to watch out for is when you keep on encounter corrupted files. For example, if you notice that known good photos, videos, or any other type of files have become corrupted, a bad hard drive may be to blame. Keep in mind that there are a number of other factors that lead to files becoming corrupt but you should not rule out bad hard drive (viruses can also corrupt files as well as other software issues). Programs that suddenly stop working is another indicator. It may be an early sign of a hard drive slowly going out.

Random freezing or lock ups. Even brand new computers can suffer from freezes or lock ups but if the problem happens more frequently in your case, it may be a sign of a dying hard drive. If the usual reboot process won’t fix the freezing issue, your hard drive may be going out soon.

Near-constant crashes. Like in random freezing issue, if your computer keeps crashing even during normal use, a bad hard drive may be behind the trouble. Some crashes may be accompanied by errors or blue screen of death. Make sure to take note of the error or error code (if possible) and do a quick Google search for it.

Bad sectors. A hard drive disc is divided into different sectors. A hard drive sector can save 512 bytes normally although more advanced drives can save up to 4096 bytes. Sometimes, a certain part of the hard drive can have bad sectors, which often leads to crashes, errors, or loss of file. There are two types of bad sectors — hard and soft. A hard bad sector means the disc is physically damaged, while a soft bad sector is caused some software glitch. The latter is often fixed by a full hard drive reformat. To check if your hard drive has bad sectors in it, you can use the built-in Windows diagnostic tool. The tool will identify bad sectors and will try to fix them if possible. Simply follow these steps:

1. Right click the drive under My Computer.
2. Select Properties.
3. Navigate to the Tools tab.
4. Select Check button under Error Checking.

Types of hard drive failures

A hard disc drive is often one of the first components in a computer that dies. That’s a fact. Length of life of hard drives vary a lot depending on  a number of factors. Some drives can last five years and above despite extensive every day use while others can fail after a couple of years with light use only. Like your own demise, you must always prepare for the final day your hard drive. Unless you keep trash in it all the time, a complete hard drive failure may be catastrophic. That said, we can’t emphasize the point enough that you need to regularly create a back up of your irreplaceable files to another device or in a remote cloud service. For now, let’s discuss what are different types of hard drive failures you may meet.

Head Crash. This problem occurs when read-write head, commonly called head by technicians, comes in direct contact with the fast rotating platter or disc. A head works by “flying” over rotating platter. This is made possible by riding on top of an entrapped moving air at the surface of the platter. The gap between the platter and the head is called “flying height.” a sudden severe movement of the computer can significantly reduce the flying height, causing the head to come into contact with the platter. This sudden jolt can physically damage the hard drive after the head touches the platter. Years ago, laptops are prone to head failures but today, such problem has been addressed by motion detection system that automatically parks the head safely if sudden movement is detected. We still discourage users from suddenly moving their laptops or desktops though because no system is perfect.

Mechanical Failure. As the name suggests, this one means that one of the moving parts inside the hard drive assembly has failed. In many cases, it’s a head crash, as mentioned above. Sometimes, the hard drive motor or actuator, or even a bearing simply goes out. Mechanical failure is the most common hard drive failure but as long as the disc or platter is not damaged, there may still be a chance that you will be able to recover important files.

Media Failure. The platter or disc is where the actual data are stored. If it becomes scratched by the head after a sudden movement or jolt, the sectors damaged by the head will no longer allow reading or writing, which often results to corrupted files. The missing files may or may not be critical to the system. If they are critical, your computer may randomly crash or show the blue screen of death issue.

Logical Failure. The term “logical” here refers to the data becoming inaccessible after it was modified due to a number of reasons. This means that the actual data is still intact but it can no longer be accessed normally because the method to read it has been altered. Causes of logical failure can vary but often they are due to a firmware glitch. Logical failure is often easy to fix although it’s the most uncommon issue of all four types. Physical disc damage can sometimes lead to logical failure too, especially if the critical system data has been cut off due to hardware failure in the platter. For example, the set of photos and videos in certain sectors may still be intact but another physically damaged sector that contains vital system files needed to access the photos and videos may no longer exists.

How to fix slow performance or internet connection issues in your Chromebook

• Data 02/02/2020
• Autor nabil atia
• -9
• 3916

Chromebook is a very convenient computing option nowadays. It’s lightweight, durable, reliable, and affordable too. In fact, #Chromebook has even overtaken Macbooks already in terms of sales in the US since last year. It’s a testament to its usefulness. Chromebooks does not offer much in terms of versatility compared to conventional PCs and Macs since it’s limited to processing documents and allowing a limited ways to watch media. Still, the fact that these limitations did not deter millions of people from using it is a clear indication of its relevance.

However, Chromebook’s glaring limitation aside from the obvious ones is the fact that it’s heavily dependent on internet connection. An offline Chromebook is a dead Chromebook. Although developers are making strides in making their apps useful when Chromebook is not tethered to the web, having internet connection issue on a Chromebook is simply frustrating, to say the least. Whether you have a slow internet connection in your Chromebook or no connection at all, it certainly will not be a very desirable situation. Chances are, you bought a Chromebook in order to do more serious tasks so any network issue you might have cannot be tolerated.

For many, a slow Chromebook may mean one of two things:

• the computer itself is slow
• internet connection is slow

Sa se calculeze suma S=1!+2!+3!+…+n!

• Data 30/01/2020
• Autor narcis iordanescu
• -1
• 1783

Anteturi iostream vechi

Fișierul antet < use_ansi.h > conține #pragma declarații care biblioteca C++ Standard să fie asociate în vigoare. Toate anteturile de C++ Standard includ < use_ansi.h >. Așadar, dacă includeți orice antet Standard C++ într-o aplicație, Biblioteca Standard C++ va fi legat în mod implicit. Următorul tabel listează toate fișierele antet care includ < use_ansi.h >.

Anteturi standard C++

Este posibilă mixaj apelurile către Biblioteca iostream vechiul și noul Standard C++ bibliotecă în Visual C++ 4.2.

Tabel rezumat pentru CRT dll utilizat