Troubleshoot installing or uninstalling programs
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Most programs written for Windows XP also work in this version of Windows, but some older programs might run poorly or not run at all. If an older program doesn't run correctly or doesn't install, start the Program Compatibility Wizard, which simulates an earlier version of Windows. You can run the wizard on the setup program itself if the program doesn't install, or you can run the wizard on the program if it installs but doesn't run correctly. For more information, see Make older programs run in this version of Windows.
If you are trying to install, right-click the installation icon for the program, and then click Run as administrator.
管理者のパスワードまたは確認を求められた場合は、パスワードを入力するか、確認情報を提供します。
If the program installs but does not run, right-click the program icon, click Properties, click the Compatibility tab, select the Run this program as an administrator check box, and then try to run the program.
You can usually choose the location of the folder during the setup process. You might decide to change the default location if you have created multiple partitions on your hard disk and want to store programs on a specific partition. We don't recommend moving program files after they have been installed; if you have moved program files, you might need to reinstall the program to make it work correctly.
Access to certain Windows programs can be controlled by using Windows Features in Control Panel. For more information, see Turn Windows features on or off.
If the program does not begin installing, browse to the program's setup file (usually called Setup.exe or Install.exe) and double-click the icon to start the installation.
Only programs that were written for Windows will appear in Programs and Features. If you don't see the program listed and you want to uninstall the program, check the information that came with your program, or go to the manufacturer's website. Most programs install themselves in the C:\Program Files folder. Check this folder because some programs also include an uninstall program that you can try.
If the program doesn't uninstall completely the first time, sometimes running the uninstall program a second time will succeed.
If that doesn't work, try uninstalling the program while Windows is running in Safe mode. For more information, search help for "safe mode."
If you installed the program recently, you can try using System Restore to return your computer's system files to an earlier date before you installed the program. For more information, search Help for "system restore."
Some programs that appear in Programs and Features can, in addition to being installed or uninstalled, be changed or repaired. By clicking Change, Repair, or Change/Repair (depending on the button displayed), you can install or uninstall optional features of the program. Not all programs use the Change buttons; many only offer Uninstall.
No, but you can reinstall your previous operating system, which then replaces Windows Vista. To reinstall your old operating system, you must have the original installation disc. Back up your programs and files, insert the installation disc into your computer, and then reinstall the old operating system. To regain the hard disk space used by Windows Vista, reformat the disk during the reinstallation process. After reinstalling your previous operating system, reinstall your programs and files.
Use automatic updating to ensure that Windows stays up to date with the latest fixes from Microsoft, including driver updates. For more information, see Install Windows updates.
No, but if you have installed a different web browser, you can use that one instead. Most browsers display a message asking if you want to use that browser as a default. For more information, see Change which programs Windows uses by default.
Some media players offer to be the default player for all types of file formats they are capable of playing. Usually, you can select the formats the player plays by default from within the player itself. You can also change program defaults and set file associations for programs from within Windows. For more information, see Change which programs Windows uses by default.
Hardware devices require drivers to function properly. Windows includes drivers for many devices, but you might need to install a specific driver for your device. For more information, see Tips for fixing common driver problems.
Your program might be incompatible with this version of Windows. Check the information that came with your computer, or go to the manufacturer's website to see if there is an updated version of the program.
