Changing the Data Execution Prevention (DEP) settings
Problems with an older game or software title crashing on your Windows Vista, Windows 7 or Windows 8 PC? Try changing the Data Execution Prevention (DEP) settings. Newer versions of Windows include a new security mechanism called Data Execution Prevention (DEP). DEP stops programs running instructions or code that they shouldn’t. It’s a security mechanism to help stop hackers exploiting programming errors. Because of this, you shouldn’t disable it except where a program is specifically incompatible with it. Several older games titles are incompatible with DEP and so if you want to play those games you will need to disable DEP protection for them.
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As stated above, there is a small security risk to disabling DEP protection for a program. Try other compatibility options first before you disable DEP. When a program is incompatible with DEP, it will most likely crash back to the desktop. Disabling DEP will usually not help with fixing issues such as corrupt graphics, for instance.
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