Operating Systems





Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

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I'm having windows search issue, so i have  applied following steps: But still it is not working.

Restart your computer
End Cortana's process
Restart Windows Explorer
Restart Windows Search service
Use Windows troubleshooter to restore indexing services
Set startup options and restart Windows Search
Change the size of your paging file
Disable Zemana AntiLogger Free keystroke encryption (not applicable since I'm not using this)

OS: Windows 10 version 1809 (OS Build 17763.253)

User, I'm having this issue as an "Administrator"
But when I log in other accounts in the PC windows search is working fine.

Here is the screenshot for this issue: windows search issue
When I use the task view near to the search, windows search is working fine.

Here is the screenshot:search works fine
How to resolve this issue?
Become a CompTIA Certified Healthcare IT Tech
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Become a CompTIA Certified Healthcare IT Tech

This course will help prep you to earn the CompTIA Healthcare IT Technician certification showing that you have the knowledge and skills needed to succeed in installing, managing, and troubleshooting IT systems in medical and clinical settings.

This is a planning in writing a vbscript to find out PC OS, service pack, missing patches, computer name, antivirus software installed, personal firewall, and so on. This vbscript was evaluated and works without problem. The "last piece" of the check that we are thinking to put in is the checking of PC for any possible infection of virus. How do we ensure that the pc is really virus-free? Can we write a script to check for some "run", "runonce", and other registry key and values? the objective is this seems to be a "preliminary" check for the virus infection, malware, spyware, and so on. MS Windows clients from windows 7 to windows 10.

If so, any sample for the script on this virus checking?

Thanks in advance.
i have a virtual machine within Azure which serves up a web site.

when i navigate to http://api.website.com it works fine.  i purchased a SSL certificate and it imported into IIS.  i edited the bindings for the cert using the default port of 443.  i added the site's name api.website.com to the bindings.  

when i navigate to https://api.website.com i get a "The connection has timed out" error.

the firewall rules allow 443 (default rule).

what else can i check and/or modify within IIS or the OS?  any help is appreciated.


Good Day,

I'm new to Linux, could you please guide me which is the best and secure Linux os (Freeware)

i have a gpo for scheduling a task to automatically restart domain computers at a specific time.  I have one executive who works late so I want to disable that gpo for him, and as such, moved him and his computer to new ou's in ad.  the scheduled task is now removed from his computer, yet the computer keeps restarting at the scheduled time as if the gpo is still in force.  I need help figuring out how to prevent his pc from restarting at 6pm. Below are some logs of interest from the event viewer:

Log Name:      System
Source:        Service Control Manager
Date:          1/3/2019 6:05:15 PM
Event ID:      7045
Task Category: None
Level:         Information
Keywords:      Classic
User:          CONTOSO\Administrator
A service was installed in the system.

Service Name:  PsShutdown
Service File Name:  %SystemRoot%\PSSDNSVC.EXE
Service Type:  user mode service
Service Start Type:  demand start
Service Account:  LocalSystem
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
    <Provider Name="Service Control Manager" Guid="{555908d1-a6d7-4695-8e1e-26931d2012f4}" EventSourceName="Service Control Manager" />
    <EventID Qualifiers="16384">7045</EventID>
    <TimeCreated SystemTime="2019-01-04T02:05:15.225800600Z" />
We are looking to setup a few cache servers and aren't sure what OS would be best. Our network at present is mainly Windows 2012 r2 and a few 2008 r2 servers. We would like to use use the newest OS we can, as these are purchased through a special program that allows us a discount, but we haven't used 2019 and don't know if this would cause any issues with the older OS we have in use now. Any advice would be most appreciated.

where and how i find cheap and best gaming laptop with good configuration with ram around 16gb for future uses and windows OS and intel i7 or above and good memory

please advise
How can ransomeware .Adobe execute on a newly installed OS?  I have a email server running Windows Server 2016 and MDaemon Email software. Last week it was hacked probably by non-standard RDP port i had open and encrypted all files and most of my backups. I was able to recover the email files and configuration within the MDaemon directory. I wiped the hard drive and did a clean install of Windows Server, copied my recovered MDaemon files to the clean hard drive. Reinstalled MDaemon and was up and running. I also closed the RDP port previously open. No no public access to the server except for necessary ports.  Yesterday I was encrypted again. Again it seems to have been done from the email server as files on the desktop and everywhere else are encrypted. I have recovered again by the same methods plus a couple of other security enhancements such as new user name and password. My question is how in the hell are they getting into my server and what else can I do to prevent this from happening again. Thank you and happy holidays!
Happy Holidays Everyone,

can someone recommend  free program for Mac OS ( She is running Mojave) that resize a scanned document or picture please.

Thank you,
Android OS
App: Outlook
Question, can malware get into the Outlook app, it it infect the phone?
OWASP Proactive Controls
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OWASP Proactive Controls

Learn the most important control and control categories that every architect and developer should include in their projects.

Hi guys, based on your experience which one or ones in the msconfig station should I disable to make reboot faster?
I need to be able to share a printer when a computer is connected to the VPN.
My theory is that  the printer will need to be shared, before it can be printed to, when a VPN connection is established.
The OS is Windows 10
My other ideas is to uninstall the printer and install it when I am connected to the VPN.
I imagine there is a solution to this challenge.
I do not recall the other steps I tried, but I believe the one solution to the problem is to configure a Cisco ASA.
I was also thinking that I will have to enable the wireless printer's IP as an exception on the firewall.

Maybe I need to create a script with Powershell, to first configure the printer to print to a file then send it directly to the print queue.
Hello Experts,

We have Dell R610 servers in our network, last few days i am getting unexpected server reboot issue, i try to find issue but unable to find out.
please help me out i am attaching 2 servers log files.

OS - Windows Server 2008 R2 Stranded SP1
i am getting a new computer (it has been 8 years) and wondering about best SSD Hard Drive config.

I am mainly using the Adobe products, but no 3D stuff.... photoshop, preimer, illustrator.

What is the fastest setup

- 1 SSD for both OS and Programs
- 1 SSD for OS and another SSD for Programs?

Does this even matter anymore?  thanks
I need to run some 32 bit legacy software and some old hardware (Scanner) that will not work with Win10.

Can Windows 7 32bit and XP be installed on newer PCs ?
If Yes ... How new ?     ....... How about an Intel i3 ?

I know that anything above 4gig memory is wasted on 32 bit systems.

(These PCs will not be connected to the internet or my LAN so security will not be an issue).

In Azure  when I create a Windows machine it let me choose the OS version but not all. Like Windows 2012 it just give Windows 2012 Datacenter or WIndows 2012 R2 Datacenter. Why just Datacenter version?

On Windows 10 Pro I was able to set up an account without an email address. I just got a new computer with Windows 10 Home Edition and want to set up a user without an email address and can't figure out how to do this. I want to do this because the computer is used in a church classroom for projecting DVDs and songs or lesson material. It is used by different people who should not have accounts on the computer. The other computers have a "projectionist" account with minimum priviledges. I have set up the registry on those to automatically log the projectionist account when when booting up. It works very well in this setting. I've tried a fake email address but the OS requires it be authenticated so that doesn't work.
I have VM platform operated by VMWare vCenter Server 5.5.0, build 4180647, hosted by ESXi

physical host server by HP Proliant ML 350p Gen8, CPU E5-2620@2.00Ghz,  2 Processor Socket CPU, 6 cores per socket

When create new VM with OS Windows server 2012. I want use maxmium resource for host.

from VM configuration menu,

What / how "Number of virtual sockets" and "Number of cores per socket " should set to ?
I'm sure this this a very simple answer, but I'm having trouble finding it. It's one of those situations where I ask "What time is it?" and the reply I get is how to build a clock instead of a simple answer.

I want to change folder settings in Windows 7 and 10 to display certain settings for ALL folders I open.

For example:

 Screenshot 1
note that I have selected the "size" option to be displayed for files in this folders where that option is applicable. and also note that I have selected the "file type" option as well.

Is there a way to set these options to show for ALL folders all the time in both operating systems? AND--especially important--when I plug in a n external drive and look at files on it, will those options also apply automatically to those files?
Learn SQL Server Core 2016
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Learn SQL Server Core 2016

This course will introduce you to SQL Server Core 2016, as well as teach you about SSMS, data tools, installation, server configuration, using Management Studio, and writing and executing queries.

i have a weird problem with printing.
software used : Word2016, OS =windows 10  - Both 64 biteverything re garding printing is fine except the top margin.
i set  a TOP margin at 1cm - and it prints at 3,2 cm. in the margin section
i set the top margin at 3,5 cm and it prints at 4 ,8cm

i tried this on 2 different systems and 2 different printers HP B109a and HP c4180

what can be the cause? or how can i get a correct top margin on my prints???

I'm confused, I've started this new role and they've assigned 3 cores and 10GB of memory to a VM, I cannot fathom why you would assign it in this fashion. Would this cause issues for the OS trying to manage the odd number of cores and the excessive amount of memory.

I would like someone to educate me on rooting my Samsung Galaxy Note 3 and 4. Are there any benefits of doing so. Will it damage anything in the OS? Finally, please provide a detailed step by step on how to root the phone. Thank you.
I have WinZip Mac Optimizer on my MacBook Pro 2012 under Yosemite (10.10.5). I have been using the product for several years. Regrettably, for some unknown reason, I keep getting an error box "Backup removal unsuccessful - The selected redo point(s) could not be deleted. Please try again." Despite selecting the "OK" box, the error message keeps repeating every few seconds. I have no way of judging how effective this product is. However, I would be grateful for any suggested resolution to this vexing problem. BTW, I cannot upgrade to a more recent Mac OS because I use Boot Camp for my Windows 7 essential applications, which cannot be used in Windows more recent operating systems. Appreciatively, Arbyem
Facing issue with MySQL 5.7.22 and (5.7.24) above
Hello Experts,
Facing issue while inserting data to MySQL 5.7.24 with OS Ubuntu 18.04. It is taking to long time to insert data. 5k-6k/min insert rate
As i checked with MyQL 5.7.19 with Ubuntu 16 it works fine with insert query. 100k-400k/min insert rate

For the above i have googled but no luck someone reported this issue with mysql forum but the only thing for performance that i got is configure the parameter in my.cnf

#log_bin                        = /var/log/mysql/mysql-bin.log
#expire_logs_days       = 10
#max_binlog_size   = 100M

Open in new window

By this it is now increased to 20k-22k/min but this is not up to mark if we look at the performance of the MySQL 5.7.19 with Ubuntu 16

Can anybody help me out to tune mysql parameter or tuning at MySQL level or may be at Ubuntu 18.04 level.
Hi ...
After creating a bootable USB  using "etcher" utility from ISO files on a USB flash drive, the USB drive becomes the same size as the ISO file and cannot add more files. Moreover, inserting it into Windows OS , the usb key is not recognized anymore. Is there a better utility supporting any kind of bootable ISO files and still be useable to add more files to it.


Operating Systems





Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.