Original Title: No Windows Installation diskette?I started getting this message: acagent.exe-Bad ImageThe application of DLL C:\WINDOWS\system32\cryptnet.dll is not a valid Windows image. Please check this against your installation diskette.I don't have a diskette. Don't know what to do. Suggestion, anyone? (I'm technically challenged)

Hi CJgirl, - When exactly do you get this error message? Is it at the startup of the computer or while opening any particular application?Place your computer in Clean boot state to identify if any third party application is causing this issue. Putting your system in clean boot state helps in identifying if any third party applications or startup items are causing the issue. If yes, you may have to contact the program manufacturer for any updates or uninstall and re-install the program. Here’s the article you may refer to for steps with reference to the same. Use this link if you are using Windows XP:How to configure Windows XP to start in a "clean boot" stateNote: After troubleshooting, make sure to put the computer to start as usual as mentioned here:To configure Windows to use a Normal startup stateAfter you used the clean boot to resolve your problem, you can follow these steps to configure Windows XP to start normally. a. Click Start, and then click Run.b. Type msconfig, and then click OK. The System Configuration Utility dialog box is displayed.c. Click the General tab, click Normal Startup - load all device drivers and services, and then click OK.d. When you are prompted, click Restart to restart the computer. Regards,Divya R – Microsoft Support.Visit our Microsoft Answers Feedback Forum and let us know what you think.