Some programs do not follow the "rules" for extensions and will use an extension from another program for an entirely different type of file. This makes general statements about getting rid of "all" files of a certain extension very haphazard. *.fts files: The .fts files are full-text search indexes. Windows 95 can create these files for text searches using the Find tab in Help. Info from: http://support.microsoft.com/support/kb/articles/Q143/1/18.asp Bootlog.txt and Bootlog.prv are a current and previous bootlog. They are sometimes useful for troubleshooting problems starting windows. You could get rid of the current one if you are not troubleshooting... If you NEVER want an old working one to compare against, get rid of the previous one also. I do not have a sfclog.txt (in Win95b). system.1st -- A backup copy of the Registry from the first time Windows 9x was installed. If your Registry ever becomes corrupted, this file can be used to return the computer to an operational state. Note: As a backup, it will get REAL old real fast... This does NOT recover your system to what it was recently... It "may" recover the way it was when it was a "new" system, unless there have been too many of the "wrong" types of changes made to the system hardware. Hope this helps. Generally it is only safe to delete files if your are absolutely sure you know what it is and that it is NOT needed. This is a VERY hard thing to do properly, given the way Windows and other programs throw things around on your hard drive. Rick Glazier ----- Original Message ----- From: "Siva Lokanathan" <[log in to unmask]> > I would like to know if it is safe to delete file such as : > bootlog.txt > sfclog.txt > bootlog.prv > system. 1st. > *.fts > I had earlier deleted some log files and now I am faced with > the problem of not being able to uninstall some programs. > Thanks Siva Lokanathan PCSOFT maintains many useful files for download visit our download web page at: http://nospin.com/pc/files.html