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try reset windows using windows 8.1 setup.
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try reset windows using windows 8.1 setup.

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do a system restore to a date it was ok
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pavithra, please return and close your question or add feedback.
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pavithra, please return and close your question or add feedback.

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As anyone can verify, deleting that variable leads to the described problem and it can be solved by simply recreating that variable.
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As anyone can verify, deleting that variable leads to the described problem and it can be solved by simply recreating that variable.

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I am using windows 8.1 pro ,64 bit laptop.I have mistakenly deleted one of system variable file.Now i am unable to open Advanced system settings,command prompt.When i open advanced system settings it showing error as &quot;Windows cannot find '%windir%\system32\systemp<wbr />ropertiesa<wbr />dvanced.ex<wbr />e'.How to solve this? please help me to solve this problem.
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I am using windows 8.1 pro ,64 bit laptop.I have mistakenly deleted one of system variable file.Now i am unable to open Advanced system settings,command prompt.When i open advanced system settings it showing error as "Windows cannot find '%windir%\system32\systempropertiesadvanced.exe'.How to solve this? please help me to solve this problem.

Advanced system variables problem

Windows 8 is a personal computer operating system developed by Microsoft as part of the Windows NT family of operating systems, with an emphasis on improving its user experience on tablets. In particular, these changes included a touch-optimized Windows shell based on Microsoft's "Metro" design language, the Start screen, a new platform for developing apps with an emphasis on touchscreen input, integration with online services, support for USB 3.0, Advanced Format hard drives, near field communications, and cloud computing. Additional security features were introduced, such as built-in antivirus software, integration with Microsoft SmartScreen phishing filtering service and support for UEFI Secure Boot on supported devices with UEFI firmware.

Windows 8

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.

Windows OS

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).