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System Thread Exception Not Handled Error
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Read guide →Browser helpTest a Firefox problem with add-ons temporarily disabled
Firefox Troubleshoot Mode temporarily disables add-ons and certain other features. Comparing the same task inside and outside that mode helps narrow the cause.
Read guide →Document helpText copied from a scanned PDF contains wrong characters
OCR can misread unclear or closely spaced characters. Compare the copied text with the original image before using it in another document.
Read guide →Document helpText entered in a PDF form disappears from the copy you send
Save the completed form explicitly and reopen that exact file before attaching it. The original download and edited copy may have similar names.
Read guide →Office helpThe audience can see your PowerPoint notes: check Presenter View
Presenter View should appear on your own screen while the audience sees the slide show. Verify screen assignment before sharing or presenting.
Read guide →Windows helpThe keyboard types the wrong symbols: check the Windows layout
When keys produce consistently different symbols, compare the selected input layout with the physical keyboard. A layout mismatch is different from a key…
Read guide →Keyboard helpThe numeric keypad moves the pointer instead of typing numbers
Check Windows Mouse Keys, an accessibility feature that can use the numeric keypad to move the pointer. Confirm whether that behavior is intentional before…
Read guide →PrintersThe reverse side of a PDF prints upside down
Check the duplex flip edge and page orientation. A mismatched binding choice can turn the back side the wrong way.
Read guide →AccessibilityThe whole Windows screen becomes grayscale
Inspect colour-filter settings before replacing the screen. A software filter can change colours across applications.
Read guide →Meeting helpThe window you want to share is missing from Google Meet's picker
Open the target application and make sure its window is not minimized. The sharing picker lists available windows rather than every installed app.
Read guide →Windows helpThe Windows taskbar disappears until you move the pointer
Automatic hiding can make the taskbar appear only when needed. Check this behavior before treating it as a broken desktop.
Read guide →Windows helpThe wrong window scrolls when you turn the mouse wheel
Windows can scroll the window under the pointer even when another window is active. Check inactive-window scrolling if this behavior is unexpected.
Read guide →More guidesThermal Paste Replacement Temperature Drop Before After
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Read guide →Files and backupTime Machine has not backed up recently: check the selected disk
Confirm that the configured Time Machine destination is available and inspect the last successful backup. A connected drive is not necessarily the selected…
Read guide →Windows appsTook a screenshot but cannot find it: confirm it was saved
Capturing to the clipboard and saving an image file are different actions. Open the captured snip and save it to a known location when you need a…
Read guide →More guidesTrojan Horse Virus Removal Guide
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Read guide →More guidesTrojan Virus Symptoms And Removal Steps
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Read guide →Office helpTurn rows into columns in Excel while preserving the original table
Transposing rearranges a range so rows become columns. Copy into an empty destination and check how many output rows and columns will be needed.
Read guide →Office helpTyping replaces existing letters in Word: turn off overtype
Overtype replaces characters ahead of the insertion point. Check this editing setting when new letters erase existing text instead of pushing it forward.
Read guide →Linux helpUbuntu cannot connect to a workplace VPN with the supplied settings
Confirm the VPN type and required client with the administrator. Different VPN technologies need different configuration or software.
Read guide →Linux helpUbuntu detects a disk but its files are not visible in Files
Check the disk's volumes and mount state. Detecting a physical device and making a filesystem accessible are separate stages.
Read guide →Linux helpUbuntu Files cannot find a document you know exists
Check the search location and active filters before assuming the document was deleted. Searching one folder can miss material stored elsewhere.
Read guide →Linux helpUbuntu Files has no useful New Document template
The New Document menu can use files stored in your home Templates folder. Add a clean reusable file there when you need a standard starting document.
Read guide →Linux helpUbuntu menus remain partly in another language after a change
Check installed language support and the application's own translation availability. A selected language does not guarantee every program has a complete…
Read guide →Linux helpUbuntu opens an unwanted application when you insert a camera card
Review removable-media actions to choose whether an app opens, a folder appears or nothing starts automatically.
Read guide →Linux helpUbuntu records the laptop microphone instead of your USB microphone
Select the intended input in Sound settings and watch its level indicator while speaking. A connected USB microphone can appear as a separate audio device.
Read guide →Printing helpUbuntu saves a document instead of producing paper output
Check whether Print to File is selected rather than a physical printer. This option intentionally creates a file such as a PDF.
Read guide →Linux helpUbuntu says permission denied when saving a file
Check the file owner and the containing folder's permissions before changing access. Being able to read a document does not guarantee permission to replace…
Read guide →Linux helpUbuntu says storage is full even though another drive has free space
Check the filesystem receiving the write. Free space on another mounted disk does not automatically provide space in the destination filesystem.
Read guide →Linux helpUbuntu sends sound to a monitor instead of your speakers
Check the selected output device in Sound settings. Connecting a display or USB audio device can introduce another available sound destination.
Read guide →Linux helpUbuntu shows an extra filename ending in a tilde
A name ending in a tilde can be a backup created by an editor. Inspect the application and contents before deciding that it is unwanted or malicious.
Read guide →Linux helpUbuntu shows more than one installation option for the same app
Check the publisher and package format before installing another copy. Snap and Debian-package versions can be separate installations with different behavior.
Read guide →Input devicesUsb Ports Not Working On Motherboard Fix
Find out whether the USB fault follows one peripheral, one port or the whole controller. Do not force plugs into damaged connectors.
Read guide →More guidesUsb Ports Stopped Working On Pc
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Read guide →DisplayUSB-C dock connects USB devices but not a monitor
Working USB peripherals do not prove that the laptop port, cable and dock support the required video connection. Check the complete video path.
Read guide →Display helpUse a Dell monitor's built-in test to investigate an image defect
A supported monitor self-test can help separate the display's own behavior from the computer's video output. Follow the procedure for the exact monitor model.
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