Questions tagged [operating-systems]

The software layer between your hardware and application programs. It manages program scheduling, memory allocation, interrupt handling, disk input/output, graphic acceleration, hosting device drivers and various other resources.

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I removed all empty folders in System32

Well it happens to the best of us... I was running a batch file which runs a RD XXX for every folder in a location and accidentally run it as admin inside System32. It saw that it removed 3-4 empty ...
Panos B.'s user avatar
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How does re-installing an operating system on a primary drive impact data on mounted filesystems?

I have a machine with 3 separate SSD drives: sda - Holds the operating system itself (Ubuntu) sdb - Personal Data sdc - Personal Data sdb and sdbc are mounted drives. Say I planned on wiping the OS ...
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Can I install OS from Virtualbox to disk?

I have installed Linux distros many times by mounting ISO in Virtualbox and installing it from virtual machine to disk. It always seemed to work, although is it safe and should everything work fine?
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How a 32 bit number stored in 64 bit processor with 32 bit OS? [duplicate]

When a 64 bit OS runs on a 64 bit processor, the processor processes the whole 64 bit (8 bytes) in one go. Suppose a 32 bit OS runs on a 64 bit processor, how is data extracted? Is 32 bits (4bytes) ...
David Roonie's user avatar
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Does every storage device have MBR?

I have learnt that the BIOS collects the most diverse hardware data and create a complete list of all of the device’s available drives immediately after being powered on. When this process is complete,...
manoj kumar's user avatar
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System restore Windows with Ubuntu dual boot

I currently have dual boot with Windows 10 and Ubuntu on different partitions. If I were to do a system restore on Windows 10 where I pick the option to delete all files, will the dual boot (Ubuntu ...
user737163's user avatar
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Why client need a new build instead of just download the released executable

The question is just a sentence, why the github projects would always like to come with the build instructions instead of just leaving the download link/instruction? I personally think that it ...
null's user avatar
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Will factory reset bring back my windows and solve the booting problems?

So initially I had Windows 10, then I installed OpenSuse Tumbleweed for dual boot. But for some reason I am not able to boot into windows and I can't see the option of Windows in the BIOS either. Now ...
Emperor's user avatar
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Is video memory mapped to 0xb8000 on every modern computer?

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​I will attempt making an operating system for my computer and haven't been able to find a definitive answer.
Sencres's user avatar
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What does Windows unrequested logoff type 0 (event1100) followed by dozens of events logon (event 4264) mean?

I left a python script running all night. And in the morning I noticed that my computer was with the login screen, waiting for me to type the password (interactive mode). I did not expected that, the ...
Eugenio.Gastelum96's user avatar
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1 answer
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Win7 could not support NVM hard disk?

I use win7 installation disk burned with ISO image and try to install new OS. But get this error.Windows could not install on this disk.Windows need driver[standard NVM Express Controller]. Hard disk ...
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What’s this little arrow thing in the top right corner in google chrome?

Today I noticed a strange arrow in the top right corner in Google Chrome. I checked my extensions it isn’t and extension. What could it possibly be? A new update? I’m using the Version 89.0.4389.90
HereForFindingHelpObviously's user avatar
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Can any one help me.it shows every time I scan

Windows Resource Protection found corrupt files and successfully repaired them. For online repairs, details are included in the CBS log file located at windir\Logs\CBS\CBS.log. For example C:\Windows\...
Snehashish Patra's user avatar
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System \ ntoskrnl.exe \ RtlIoDecodeMemIoResource consuming 3-4% CPU constantly: why and how to avoid it?

My Laptop is using >= 10-15% CPU constantly when idle, specifically System >= 3-4% CPU, of which most comes from ntoskrnl.exe RtlIoDecodeMemIoResource: 3-4% CPU at least at any time. From what I ...
FlorianH's user avatar
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Can an RTOS (real-time operating system) read and write files in a filesystem?

Can an RTOS (real-time operating system) read and write files in a filesystem? Or is it restricted to operating with volatile memory (RAM) only? If it can, how can the timing guarantees be enforced? ...
Pedro A's user avatar
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Can I use a bootable Ubuntu like a regular Ubuntu?

I need to do some cuda (gpu accelerated) computation with tools only available on linux. I could install a second OS on my machine but since I've never done it I'm sure I'll just destroy my current ...
Heetola's user avatar
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Can windows server 2012 be installed on virtual box?

(Private feedback for you) Im trying to install windows server 2012 on virtual box via a bootable usb but it just reaches to this screen and hangs indefinitely, I've allocated 2GB of RAM and 15GB of ...
World b's user avatar
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How open binary file

I have a file called AndroidManifest.xml I'm studying about injecting the payload manually, and for that I need to open the file to look for another file, only when I open the characters it looks like ...
Dakota's user avatar
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Catfish authentication failed

my file system was working fine, I don't know what happened it doesn't show my directories, this is because of catfish I have to update it, but when I update it appears: Error: Authentication failed ...
Dakota's user avatar
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Failed to install backdoor-apk

I tried to install the backdoor-apk on Kali Nethunter and I received the following error: [*] Running backdoor-apk.sh v0.2.4a on Mon Feb 15 05:23:28 UTC 2021 [!] Check your environment and ...
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Why does Task Manager indicate that I have 2 memory slots with only 1 in use when my laptop has 2 SODIMM slots used

I have a Toshiba Satellite P50-B-10V laptop which can be upgraded up to 16GB RAM. This laptop comes from factory with two memory slots (1 occupied by a 8GB module, and 1 free for upgrade) Recently I ...
Willy's user avatar
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installation of kali linux in windows

I have twice "disk". One is my windows I have another unallocated disk. Should I make it a volume to install Kali Linux?
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Can you run older Operating Systems on "Windows 10" motherboards?

I would like to know if there are any issues that may/will arise if I attempt to install Windows 7 on motherboards that specifically say their support is only for Windows 10. The reason why I'm asking ...
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Is there a way to do version controlled operating system back-ups?

I recently messed up pretty badly by removing all 32-bit binaries in my Ubuntu 18.04, of course I'd forgotten to make a back-up. I've had similar issues in the past on Windows as well where I did ...
JansthcirlU's user avatar
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Compensation program for bug reports in MacOS and MS Windows?

I have read that Apple gives compensation to people who found a BUG in MacOS. If that is true, does also Microsoft have a compensation program for people reporting verifiable and reproducible bugs in ...
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Writing keypresses to SSD & wear leveling

I am planning to write an application that tries to write as much to file as possible as to never lose any significant amount of data. It will write every key stroke including micro or even nano-...
Maarten Bodewes's user avatar
2 votes
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Where does Windows 10 (Chrome or Edge) stores the data of an installed PWA?

I want to be able to transfer an installed PWA to an offline PC. When "installing" it via the browser an link is created: EDGE "C:\Program Files (x86)\Microsoft\Edge\Application\...
t-der's user avatar
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The pass password-manager do not link bash compleation to my ~/.password-store folder on Arch Linux

Have had this problem on two different Arch Linux machines in the past, but it have magically resolved itself after a day or two. The primary problem is that when I write pass and use Tab, bash do not ...
page290's user avatar
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Moving a file to the prefetch folder make openning it fast?

I have an excel file, that I mostly open. If I put that file in the prefetch folder will make its openning quick? If no do you have other suggestion to make a file open fast? Thank you
Ayman's user avatar
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If I encrypt my system drive with VeraCrypt, can I be using the computer while this is happening?

I'd like to encrypt the my system drive that my OS is on. This is my only computer, so I was wondering if encrypting it would prevent me from using it, presumably for days. I've tried encrypting an ...
solologos's user avatar
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1 answer
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Is there any ubuntu package can replace to libnagios-plugin-perl for Ubuntu18?

I am working on ubuntu18.04 and I need to install libnagios-plugin-perl. But it seems that this package is not available for ubuntu18 up. apt install libnagios-plugin-perl
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Timeout detected. (data connection) command line WinSCP

I am downloading files from FTP server using winscp script it was fine till yesterday but today it keeps disconnecting. I do not know what changed today? However, I am able to connect with GUI like ...
Maredi NaveenKumar's user avatar
3 votes
1 answer
467 views

Are device drivers for controllers or devices?

Please help me straight my understanding about this: From what I understand, motherboards contain pre-installed device controllers. A controller is a chip that's responsible for communicating with the ...
YoavKlein's user avatar
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Configuring Workstation For Serial Port Communication

I am trying to access the Siemens RuggedComm 900W ROS (operating system associated with the Ethernet switch) by establishing a serial port connection. I have followed the instructions described in the ...
logic_bomb_walter's user avatar
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1 answer
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how to get the license key for windows10 developer edition on virtualbox

Hi I've downloaded windows10 image for VirtualBox (from microsoft website) and is working fine. But I see bottom right corner of my guest OS, license expires in xx days. I tried entering my windows10 ...
Yempi P's user avatar
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How can I install Windows 10 on my spare hard drive

I want to install Windows 10 on a hard drive, I already have Ubuntu 20 installed on my first hard drive and want to install Windows 10 on the second one. I did get Windows 10 on a USB though when I ...
MysteriousK's user avatar
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Windows 10 Pro Upgrade from 10 Home

I bought a Dell Laptop which had a Windows 10 Home OS pre-installed. Now I am thinking of Upgrading to Windows 10 Pro but I am not able to do it. Guys from service center are saying that I have an OEM ...
user1246762's user avatar
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1 answer
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Can we still use Fn for dragging a window on new MacBooks?

On my older 2013 MacBook Pro, I was able to hold down the Fn key and drag any window my pointer was in. I've looked through the System preferences on my new MacBook but can't find a way to do this (I ...
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Things to consider before reinstalling Windows

So, I'm planning on reinstalling windows. Long story short, windows insider expired and I cannot opt out of it anymore. Now I just keep getting notifications about it. I'm just wondering what are the ...
catmaxi's user avatar
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1 vote
1 answer
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Is it possible to move windows to other disk?

Recently I buy a laptop that using HDD, include Windows 10 Home. Now, I want to buy new SSD to increase my laptop performance. Is it possible to move the OS to new disk? Because I do not have the CD, ...
Ilya Trianggela's user avatar
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1 answer
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only 8gb storage on kali linux live on 64gb flash drive

I just got kali Linux Live and put it on my 64Gb flash drive. To install updates these take up to 6Gb of storage. I need your help to solve why I have about only 8Gb of storage on a 64Gb flash drive. ...
Jabescuber's user avatar
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Can't load any OS on my thinkpad -- Using drive 0, partition 4, No o/s

I've tried to install an OS on a Thinkpad X220. But, if I plug a usb stick on it, there is an error message : "Using drive 0, partition 3. No O/S" and I can't do anything else... And I can't ...
Baptiste Rosselet's user avatar
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What are longest extension names functioning in actual programs? [duplicate]

I'm writing piece of code detecting file extensions and I was getting quite a lot of garbage like . Jones - Some Document Title just because file name was starting with Dr. Jones. So I decided to put ...
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Is there an OS that can boot .vhd

Is there an Operating system that can load .vhd files and run them like if it was a virtual machine? And if there is how can I use it? I have tried Grub4Dos but that probably isn't what its for
PETROSADO GAME's user avatar
3 votes
0 answers
3k views

How tu run Android Generic System Image (GSI) on qemu-aarch64?

Android GSI contains a system.img and a vbmeta.img. I tried qemu-system-aarch64 system.img -machine virt but qemu simply hangs. If we can directly run the offical pre-built android image, creating an ...
recolic's user avatar
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2 votes
1 answer
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cant install any package on ubuntu Linux

root@osboxes:~# apt install gcc Reading package lists... Done Building dependency tree Reading state information... Done gcc is already the newest version (4:9.3.0-1ubuntu2). 0 upgraded, 0 ...
Dr.'s user avatar
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2 votes
2 answers
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Can you run a Windows Application inside Linux without Third Party Software like WINE?

I want to install an application originally designed for Windows in Ubuntu, but I don't want to install other software, such as WINE, to be able to do it. Is that possible?
Sandeep Pareek's user avatar
4 votes
1 answer
10k views

Disabling Shift key from overriding Numlock (or stopping Shift key from overriding Numlock for Numpad keys and using Shift as a Numpad 0-9 modifier)

If anyone knows how to disable/override the functionality in Windows of the Shift key temporarily invalidating the Numlock status so that the numpad 0-9 keys output as other keys (insert, end, down, ...
MikMak's user avatar
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-1 votes
1 answer
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Cannot update OS due to disk storage space limitations [closed]

I need to update to the latest version of Windows 10 but cannot do this due to limited space on my C: drive. It says I need to free up at least 6GB before I can install (and install the new stuff on a ...
Featherball's user avatar
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Possibly bricked PC after overclocking and frequency change

I helped my friend configure some settings on his BIOS from his custom build PC he made not too long ago, what we did was change the frequency of the RAM, which wasn't too large, and was good as my ...
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