Most antivirus programs identify winstall.exe as malware—for example TrendMicro identifies it as PAK_Generic.001 or ADW_PURITYSCA.AH, and Microsoft identifies it as TrojanDownloader:Win32/Renos or Adware:Win32/PurityScan.dr.
The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.
Description: Winstall.exe is not essential for Windows and will often cause problems. The winstall.exe file is located in C:\.
Known file sizes on Windows 10/8/7/XP are 29,184 bytes (48% of all occurrences), 28,160 bytes and 6 more variants.
There is an icon for this program on the taskbar next to the clock. The program has a visible window. There is no file information. The file is not a Windows core file. Therefore the technical security rating is 36% dangerous, however you should also read the user reviews.
Recommended: Identify winstall.exe related errors
If winstall.exe is located in a subfolder of the user's profile folder, the security rating is 61% dangerous. The file size is 122,880 bytes. There is no information about the author of the file. The process starts when Windows starts (see Registry key: Run, MACHINE\Run, DEFAULT\Run). The file is not a Windows core file. The program has no visible window. Winstall.exe is able to manipulate other programs.
If winstall.exe is located in the C:\Windows\System32 folder, the security rating is 80% dangerous. The file size is 122,880 bytes (75% of all occurrences) or 1,267,395 bytes. There is no file information. The program has no visible window. Winstall.exe is an unknown file in the Windows folder. The application is loaded during the Windows boot process (see Registry key: Run, MACHINE\Run, DEFAULT\Run). The file is not a Windows core file. Winstall.exe is able to manipulate other programs.
If winstall.exe is located in the C:\Windows folder, the security rating is 80% dangerous. The file size is 122,880 bytes.
Important: You should check the winstall.exe process on your PC to see if it is a threat. If winstall.exe has changed your browser's search engine and start page, you can recover your browser's default settings as follows:Reset default browser settings for Internet-Explorer ▾
The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active winstall process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the winstall.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.
Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
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