If your answer was anything except for “me”, you might want to ask yourself a couple of questions:
1. Have I ever left my PC filled with personal information with somebody I don’t trust?
2. Have I ever left my PC filled with personal information with somebody I trust, but I shouldn’t?
3. Have I ever left my PC filled with personal information with somebody I trust, and I think I should? (you shouldn’t)
If you answered “Yes” to any of these questions, your data was (most probably) compromised. Yes, your chat logs, your pictures, your other kind of pictures, your web history, perhaps even passwords.
“BUT NO!”, you say! “I protected my files, they were in a secret folder somewhere. I also hid them.”
Sure, that could work. And for the most part could even be enough if your PC is being fixed by someone who’s fixing 100 computers per day and couldn’t be bothered. But if it’s your friend? They sure do have the time. They also know a lot more about computers than you because otherwise he wouldn’t be fixing yours. They probably know all of the usual “tricks”. Windows search dialog even has a “Search hidden files and folders” checkbox. You really don’t have to be a hacker to find “hidden” files on a PC.
I made a little anonymous poll asking this question: Would you go through personal files on a PC your friend gave you to fix?
Haven’t gotten many replies because I tried to avoid sites such as 4chan and this one because one is full of immoralfags, and the other is full of moralfags (don’t know what’s worse TBH), but the percentages remained the same from the 4th vote (now 34): 75% of people WOULD. Yup, that’s right. 3 out of 4 of your friends would suck your laptop dry looking for personal stuff.
And it’s such a perfect crime. You gave up your PC voluntarily. They’re actually HELPING you! You think your files are hidden and safe, or you just trust him\her and don’t worry. And if they’re intelligent enough to keep their mouth shut, you will never EVER find out that all of your personal everything has been compromised. Chat logs, diaries, pictures. And it can be used against you!
I wonder what would happen if your friendship with such a person fell apart. Or you earned a LOT of money. Blackmail? Posting your stuff on 4chan? Something worse?
The bottom line is: either give your PC to someone you completely trust (for example, someone who already DOES have access to your private “data”), or just learn how to properly back up and CLEAN\ENCRYPT your PC before giving it to someone shady (and everyone is). The best thing you could probably do is to learn how to fix your computer yourself.
Yup, that’s right. Learn how to back up data, how to install the OS of your choice, install drivers and all the applications you’re using. Why? Because you’ll self-improve by learning something new. Because you won’t depend on others. And because the only person fondling your stuff will be you.