The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or the Windows Installer is not correctly installed. Contact your support personnel for assistance. Note This behavior does not occur in the following products:

In addition to this real-time protection, updates are downloaded automatically to help keep your device safe and protect it from threats. ... Windows 10 or 11 in S mode. Some features will be a little different if you're running Windows 10 or 11 in S mode. Because this mode is streamlined for tighter security, the Virus & threat protection area ...

Start Excel in Safe mode by going to the Windows 8 Start screen and clicking Run. Type excel /safe in the dialog box. If Excel starts in Safe mode, begin disabling add-ins one at a time. Click on the File tab and then click Options. When the Options menu appears, click on Add-Ins.

Als u Windows in de veilige modus observeert, kunt u de oorzaak van een probleem beperken en kunt u problemen op uw pc oplossen. Er zijn twee versies van de veilige modus: Veilige modus en Veilige modus met netwerkmogelijkheden. Veilige modus met netwerken voegt de netwerkstuurprogramma's en -services toe die u nodig hebt voor toegang tot ...

To change these settings, you will need to switch the PC boot mode from one enabled as “Legacy” BIOS (also known as “CSM” Mode) to UEFI/BIOS (Unified Extensible Firmware Interface). In some cases, there are options to enable both UEFI and Legacy/CSM. If so, you will need to choose for UEFI to be the first or only option.

Ezért ha a Windows 10 Pro, Enterprise vagy Education kiadását S módban használja, az S módból ki kell váltania ahhoz, hogy Windows 11-re frissíthessen. Az S üzemmódból való átváltás egyirányú. Ha bekapcsolja a kapcsolót, nem térhet vissza Windows 10 vagy Windows 11 S módban. Az S módból való váltás díjmentes.

When you are prompted, use the arrow keys to highlight Safe Mode with Networking, and then press Enter. Tip: Safe Mode starts Windows with only the minimum number of drivers and services necessary for operation.

If you're having trouble starting (booting) your PC, see Windows Startup Settings (including safe mode), and go to the “Get to Windows Startup Settings in the Windows Recovery Environment” section. You can refresh, reset, or restore your PC from the Windows Recovery Environment.

A biztonság és a teljesítmény növelése érdekében az S módban Windows 11 csak az Microsoft Store-ból futtat alkalmazásokat. Ha a Microsoft Store-ban nem elérhető alkalmazást szeretne telepíteni, illetve ha Windows 10 Pro, Enterprise vagy Education verzióval rendelkezik, és Windows 11-re szeretne frissíteni, véglegesen ki kell kapcsolnia az S módot.

Kids Mode includes features like custom browser themes, kid-friendly content, browsing based on an allow list, Bing SafeSearch set to strict, and a password requirement to exit. Also, Kids Mode doesn't require a child account or profile. Currently, Kids Mode is limited to US English on Windows and MacOS. Start Kids Mode