General Computer Problems

Below are some of the most useful tips I've gathered over many years of troubleshooting PCs and despairing at the number of browser toolbars unsuspecting pensioners install. And no, I'm not going to come around to "take a look". Work your way through all of these first.

Be Google smart


Google can be a huge help when it comes to specific error codes and very detailed problems. It's less useful for "my PC is running slowly" queries. Include as much detail as you can, putting "+" before keywords that must be matched and "-" before keywords to exclude.

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How to System Restore PC


Windows' built-in roll-back feature will undo recent changes to the registry and hardware and software setup of your computer, without affecting your personal files and holiday photos. It's a good place to start if something has very recently gone wrong. You'll find System Restore via Control Panel


How to enter computer Safe Mode


Tap F8 during boot-up to access the boot menu. Choose Safe Mode to launch a special stripped-down version of Windows that keeps drivers and background utilities to a minimum and looks like it's straight out of 1995. Safe Mode can be used to uninstall programs or devices, or run fixes, if you can't get into Windows normally.

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Why is my Computer Overheating


If your PC crashes at seemingly random times -- in other words, there's no particular software program or hardware device that prompts it -- it's possible that your computer or laptop is overheating. Invest in another fan or a laptop cooler if you think this may be the cause.

More Computer How to fix.


How to boot to Selective startup

If you find any superfluous entries in Task Manager, chances are they're being launched with Windows. Scour the Startup folder on the Start menu to find and remove anything you don't really need all of the time. For more control over the Windows startup process, type "msconfig" into the Start menu search box and hit Enter -- the subsequent dialog lets you make detailed changes to which services and tools can launch automatically at the same time as the operating system.

Windows won't start

Windows comes with various system recovery options (besides Safe Mode) that you can use if the operating system won't boot. Tap F8 when booting and choose 'Last Known Good Configuration' to revert back to the settings in place when Windows last launched. Another trick you can try is to unplug all non-essential peripherals -- sometimes a badly configured device will cause the startup process to hang.

Computer Laptop issues how to fix


Motherboard beeps

If your PC gets so far and no further, and you find it beeps at you and shuts down before Windows even starts loading, the problem is at a lower level. Motherboards will alert you to what's gone wrong by the number of beeps -- check the user manual to find out what they mean, or look for a digital copy on the manufacturer's website.

How to fix windows Registry cleaning

The labyrinthine settings file that is the Windows registry can cause errors, program crashes and system restarts if something has gone wrong deep within it. There are plenty of third-party tools that will scan it for problems for you, though not all of them are trustworthy -- Glary Registry Repair is one of the ones you can depend on (though as with any advanced tweaking tool, use at your own risk -- you do back up, right?).

How to Test the hard drive

Modern hard drives have something known as SMART (Self Monitoring And Reporting Technology) built into them. It's a standardised technology the disks use to report their status and general health back to Windows. Plenty of free applications can read and report this SMART data -- HDD Health is one example, which also supports SSD drives -- and they will display warning signs if you need to buy a replacement drive in the near future

4 How to fix Internet Problem


Find the fault

First step: find where the problem is. Check if you can connect to the web on other computers and devices. Ideally plug a laptop into the router directly and run the router's built-in testing diagnostics -- your ISP may be experiencing issues. If there's only one PC that can't get online, there's likely to be a problem with its network adaptor or settings.

Adaptor problems

If you suspect the adaptor is to blame (a wireless USB dongle, for example), check the hardware tips above. Try updating the adaptor's driver, uninstalling and reinstalling, or simply plugging it in another USB port

Update firmware

It's possible there's a firmware update for the router that you're using, though some ISPs frown on users taking this much control over their network setup. The best place to start looking is the customer forums for your ISP, where you should find details of which free router you've been lumbered with and how you can update its firmware.

Reboots all round

The reboot process is something of a troubleshooting cliche, but that's because it often works -- turn the router off for 30-60 seconds to re-establish the connection and reset the router. Reboot your PC for good measure to attempt to connect again.

5 Network management


Network management

Delve into the Network and Sharing Centre in Windows to make sure there aren't multiple programs trying to manage your wireless connection. Laptop manufacturers will often bundle their own network management software with their machines, which is fine as long as these applications aren't trying to work concurrently with Windows' own utilities.

Browser woes

Switching to an alternative browser is a simple way to test if your Internet-related problems are being caused by your favourite browser. If the browser is to blame, try some of the software tips I mentioned earlier, and take a long hard look at the plug-ins and extensions.

 Firewall settings

Firewalls can be temperamental and might be blocking the site, service or program you're trying to use. Consult the incoming and outgoing settings when you've found them (if you're using the Windows Firewall, head to Control Panel). If you're struggling to get online with a particular game or networking tool, you might find instructions for allowing firewall access in the supplied documentation.

View connections

Head into the Network and Sharing Centre to make sure your PC is trying to connect using the right connection (wireless versus wired, for example). While all of this should configure itself automatically, rogue programs or security tools can make changes they shouldn't. There are also some troubleshooters built into the Network and Sharing Centre, which are surprisingly useful

Is it down?

If you're having issues with a particular site, look it up on

downforeveryoneorjustme.com -- the problem may not be at your end. Note that if something large scale suffers a failure -- like Amazon's S3 storage -- it can affect many different sites and services at once.

6 Slowdowns


Slowdowns

PC owners should regularly clean their registry, empty cache files and update software. Five-year-old machines are typically still in good order if diligent maintenance is done. Generally, a visit to Start/Accessories/System Tools (in Windows XP) does the trick. Disk cleanup and disk defragmentation usually take a few hours and are well worth the down time. The tools needed to check your system (computer management and system performance) are under Administrative Tools.


s

Lockups

 

Perform a few diagnostic steps to clean up spyware, which causes many system lockups. There are shareware anti-spy programs on the market that load the basic software onto your PC for free and have premium upgrades for a charge. Three reputable programs are Ad-aware, Cyber Patrol and Spybot

Freeze and Crash

When your computer cannot find an updated driver, it will lock up and freeze. Hardware drivers should be updated on a regular basis. It also helps to augment your computer's RAM by increasing your PC's virtual memory

Blue Screens

 

Hardware issues can also cause computer problems. Attribute these problems to fading power supplies or defective parts, including cooling fans. Keep the fan cleaned and make sure all cables and plugs are tightly connected. If all of this fails, see the "Blue Death Screen" resource below

Clicking Sounds

 

This is another hardware issue. Noises like clicking, squealing, whirling or whining might come from damaged electronic components. Remove the computer case and let the computer run to see if you can find the problem. Save yourself some money and fix it yourself if you can, but your best bet is to call a technical expert if you're not confident with internal computer repair.

How to fix

Give us a call at 562.366.4177, we can have a tech out to your offices.

Cost


How much to upgrade my hard drive

depending on the type of hard drive you want and size. SSD can run from 100 to 400, STAT can run from 50 to 300.

how much to upgrade my server hard drive

server hard drive use enterprise ard drives such as SAS or high end SSD. depending on the type of RAID you have and how many drives you need. Please give us a call for SERVER hard Drive upgrade.

How to Reset Cisco


cisco reset

how to reset cisco router or firewall, please refer to the cicso manual or website for more information.

how to reset router

all routers have a reset pin hole in the back, you need to use a pin and hold down the reset button for 10 sec while the router is on.

outlook microsoft issues


how to Run Outlook Diagnostics

 

Click Run

Click Outlook and fix

how much is outlook

outlook by itself is $99.00

Outlook wont let me send email

If you're having trouble sending messages in Outlook.com, try these solutions.

Check your Inbox, Check Permission, Send and email to a gmail account

 

What is Raid and Raid Level


raid 0

Characteristics and Advantages
  • RAID 0 implements a striped disk array, the data is broken down into blocks and each block is written to a separate disk drive
  • I/O performance is greatly improved by spreading the I/O load across many channels and drives
  • Best performance is achieved when data is striped across multiple controllers with only one drive per controller
  • No parity calculation overhead is involved
  • Very simple design
  • Easy to implemen

 

raid 1

Characteristics & Advantages
  • One Write or two Reads possible per mirrored pair
  • Twice the Read transaction rate of single disks, same Write transaction rate as single disks
  • 100% redundancy of data means no rebuild is necessary in case of a disk failure, just a copy to the replacement disk 
  • Transfer rate per block is equal to that of a single disk
  • Under certain circumstances, RAID 1 can sustain multiple simultaneous drive failures
  • Simplest RAID storage subsystem design

 

raid 6

Characteristics & Advantages
  • RAID 6 is essentially an extension of RAID level 5 which allows for additional fault tolerance by using a second independent distributed parity scheme (dual parity)
  • Data is striped on a block level across a set of drives, just like in RAID 5, and a second set of parity is calculated and written across all the drives; RAID 6 provides for an extremely high data fault tolerance and can sustain multiple simultaneous drive failures
  • RAID 6 protects against multiple bad block failures while non-degraded
  • RAID 6 protects against a single bad block failure while operating in a degraded mode
  • Perfect solution for mission critical applications

 

raid 10

Characteristics & Advantages
  • RAID 10 is implemented as a striped array whose segments are RAID 1 arrays
  • RAID 10 has the same fault tolerance as RAID level 1
  • RAID 10 has the same overhead for fault-tolerance as mirroring alone
  • High I/O rates are achieved by striping RAID 1 segments
  • Under certain circumstances, RAID 10 array can sustain multiple simultaneous drive failures
  • Excellent solution for sites that would have otherwise gone with RAID 1 but need some additional performance boost

 



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Column layouts with added edge padding.

which storage is good, SSD or NVME


SSDs have a clear advantage with faster access through the PCIe serial bus standard. NVMe was built from scratch as a new way to efficiently access storage devices that are specifically built with non-volatile (flash) memory – SSDs. NVMe enables a faster interface for leveraging the speeds that SSDs are capable of. As SSDs began to replace slower Hard Disk Drives (HDDs) in computers as primary storage, a new interface was needed to make use of the faster speed capability. However, in the transition to SSD, some PCs have been outfitted with an SSD that is accessed through interfaces historically used with slower HDDs, such as Serial Attached SCSI (SAS) and Serial ATA (SATA). It makes more sense to use NVMe with an SSD.

SSD is already the primary source of storage for smartphones and tablets. SSDs are presently more expensive than HDDs, and often used as memory cache in conjunction with HDDs to speed up computer systems. SSDs have no moving parts and in many ways are more rugged than HDDs.

 

NVMe (Non-Volatile Memory Express) is an interface protocol built especially for Solid State Drives (SSDs). NVMe works with PCI Express (PCIe) to transfer data to and from SSDs. NVMe enables rapid storage in computer SSDs and is an improvement over older Hard Disk Drive (HDD) related interfaces such as SATA and SAS. The only reason SATA and SAS are used with SSDs in computers is that until recently, only slower HDDs have been used as the large-capacity storage in computers. Flash memory has been used in mobile devices such as smartphones, tablets, USB drives and SD cards. (SSDs are flash memory.)

Officially, NVMe is an optimized “scalable host controller interface designed to address the needs of Enterprise, Data Center and Client systems that utilize PCI Express (PCIe) based solid state drives.”

 

How Does NVMe work


For NVMe, the complicated-sounding “Submission and Completion Queue” is one mechanism that takes advantage of SSD technology. The Queue’s host software manages and controls SSD data flow, creates and deletes separate queues, aborts commands, and so forth. A computer with four cores might have four queue pairs to ensure that the data structures are kept in the corresponding core’s cache (see Figure 1). NVMe supports several deep, independent queues

how fast is nvme

Via that connection, most SSDs will provide Read/Write speeds in the neighborhood of 530/500 MB/s. For comparison, a 7200 RPM SATA drive manages around 100MB/s depending on age, condition, and level of fragmentation. NVMe drives, on the other hand, provide write speeds as high as 3500MB/s. That's 7x over SATASSDs

is nvme better than pcie

Entry level PCIe 3.0 SSD speeds are two to three times faster than the older generation of SATA 3.0 SSDs mainly due to the number of channels contained by each to transfer data (roughly 10 for SATA and 25 for PCIe). ... Here is a comparison between the two market leading NVMe and SATA SSDs: Samsung 970 Pro vs 860 Pro.

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Company

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Products

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Services

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Solutions

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which computer is good for business


dell

desktop

lenovo

laptop

hp

server

macbook

i9 core

apple

iphone

which wifi ap are good


ubiquiti

access point

linksys

AP

tp-link

low end

engenius

high end

cisco

break the bank

unifi

good price

UBIQUITI


802.11ac PRO Access Point
The UniFi AC Pro AP features the latest Wi-Fi 802.11ac, 3x3 MIMO technology in a refined industrial design and is ideal for deployment of maximum‑performance wireless networks.

 

The UniFi® Controller is a wireless network management software solution from Ubiquiti Networks™. It allows you to manage multiple wireless networks using a web browser.

 

tp-link AP great for the price


AC1350 Wireless MU-MIMO Gigabit Ceiling Mount Access PointEAP225

 

  • Simultaneous 450Mbps1 on 2.4GHz and 867Mbps1 on 5GHz totals 1317Mbps1 Wi-Fi speeds

 

macbook charger


magsafe 1

a1344 60watt

$25.99

magsafe 1

a1344 60watt

original $45.99

magsafe 2

60wat a1398 $30.99

apple macbook charger


usb-c

27watt

$45.99

usb-c

87watt

$55.99

magsafe 2

orginal $45.99

usb-c to usb

connect usb to macbook 2016 and up

$45.99