The Missing Extension in the Shared Lab
At a government high school in Mysuru, 24 computers in the IT lab all log in with one shared account named Student. The SSLC practical file must be saved as a single document named with the roll number, for example 23_project.docx, and submitted by Friday 4 p.m. On Thursday, a student named Asha saves her work from the Desktop as project in the Downloads folder. On Friday morning she finds a file called project, but double-clicking it opens the 'How do you want to open this file?' dialog. A classmate says he cleaned up the lab yesterday by deleting old files and emptying the Recycle Bin so the computers would run faster. The teacher has no server backup; the only copy may be on Asha's computer. The lab has one external hard disk that is used only for the annual exam question papers. Asha has 90 minutes before the deadline and a practical exam rehearsal at 11 a.m.
1. Asha has found a file named project but cannot open it. Explain the most likely reason, and give a step-by-step recovery sequence she should follow before telling the teacher the file is lost. Include one step that is often overlooked in a shared account.
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The likely reason is that the file has no extension, so Windows does not know which application should open it. The file may still contain the full document; the dialog is an association problem, not proof of damage. Asha should first note the file size. A size of 0 KB suggests an empty or failed save, while a realistic size such as 40 KB suggests real content. She should right-click and choose Open with, then select Word or LibreOffice Writer. If the text appears, she should immediately use Save As and enter the full name 23_project.docx, choosing Word Document as the type.
If that fails, she should check the Recycle Bin even though it was emptied, because emptying can fail or files can be restored from a previous point. Next she should check File History or Previous Versions if the lab has it enabled, and search the drive for *.docx, *.tmp and ~$ files. The often-overlooked step is checking Word's AutoRecover or UnsavedFiles folder inside the user profile; Word may have kept a recent copy after a crash. She should not download a random 'file opener' from the internet. If none of these steps works, she should tell the teacher before 10 a.m. and ask whether the rehearsal can be used to recreate the file.
2. Design a storage and naming rule for the shared lab account that would prevent a repeat. Your rule must cover location, filename, versioning, and one permission or account change; justify each in one sentence.
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Location: every student saves inside a class folder such as 2025_SSLC_IT\Roll23_Asha, never on the Desktop or in Downloads, because Downloads is the first place a cleanup drive targets. Filename: use roll number, short topic and date, for example 23_project_2025-01-10.docx, because the roll number makes ownership obvious and the date makes versions distinguishable. Versioning: keep the current working file and one dated backup copy in the same folder, and copy the final file to the external hard disk only after teacher verification, because a second copy survives accidental deletion. Permission or account change: create individual student accounts or give each student a private network folder, and make the shared Student account read-only for old work, because a single shared login cannot show who deleted or overwrote a file. Add a rule that no student deletes files during lab cleaning; the teacher or lab assistant should run a scheduled cleanup after checking submissions. This separates housekeeping from student work.
3. The classmate argues that emptying the Recycle Bin makes computers faster. Evaluate this claim and state what the lab should do instead to keep the machines usable.
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The claim is mostly false. Emptying the Recycle Bin frees disk space, and on a nearly full drive that can help, but it does not make the processor or memory faster and it is not a routine speed fix. Deleting student files is also risky because the Recycle Bin is a recovery layer; emptying it removes the easiest way to undo a mistake. The lab should instead use a scheduled cleanup: identify genuinely temporary files, uninstall unused software, clear browser caches with the teacher's approval, check startup programs, run disk cleanup, and make sure the antivirus and updates are working. If the computers have hard disk drives, defragmentation can help; solid-state drives should use TRIM instead. Free space should be monitored so no drive falls below about 10–15 per cent free. Student work should be stored in individual folders and copied to the external disk before any cleanup. The classmate's action may have caused data loss and should be reported, but the response should be a lab procedure, not punishment by deletion.